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10031210312123 = 7112133011302563
BaseRepresentation
bin1001000111111001001010…
…1110100011000110111011
31022111222022021221101022102
42101332102232203012323
52303322404314441443
633200135134214015
72053505512541030
oct221762256430673
938458267841272
1010031210312123
113218237787500
12116014805430b
13579c291b5730
142697281cd387
15125e04e42cb8
hex91f92ba31bb

10031210312123 has 48 divisors (see below), whose sum is σ = 13575063952128. Its totient is φ = 7212836030400.

The previous prime is 10031210312041. The next prime is 10031210312219. The reversal of 10031210312123 is 32121301213001.

It is a happy number.

It is not a de Polignac number, because 10031210312123 - 28 = 10031210311867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10031210312095 and 10031210312104.

It is not an unprimeable number, because it can be changed into a prime (10031210312923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33002840 + ... + 33305402.

It is an arithmetic number, because the mean of its divisors is an integer number (282813832336).

Almost surely, 210031210312123 is an apocalyptic number.

10031210312123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10031210312123 is a deficient number, since it is larger than the sum of its proper divisors (3543853640005).

10031210312123 is a wasteful number, since it uses less digits than its factorization.

10031210312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305616 (or 305605 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10031210312123 its reverse (32121301213001), we get a palindrome (42152511525124).

The spelling of 10031210312123 in words is "ten trillion, thirty-one billion, two hundred ten million, three hundred twelve thousand, one hundred twenty-three".

Divisors: 1 7 11 13 77 91 121 143 847 1001 1573 3011 11011 21077 33121 39143 231847 274001 302563 364331 430573 2117941 2550317 3014011 3328193 3933319 4736303 23297351 27533233 33154121 36610123 43266509 256270861 302865563 475931599 911017193 3331521193 6377120351 10021189123 11843223509 70148323861 82902564563 110233080353 130275458599 771631562471 911928210193 1433030044589 10031210312123