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31301102020123 = 138927053675039
BaseRepresentation
bin1110001110111110110110…
…00100010010011000011011
311002211100121121200122010101
413013133123010102120123
513100314124104120443
6150323305555000231
76410300326156345
oct707373304223033
9132740547618111
1031301102020123
119a787a5088281
123616443899077
1314608b19439b0
147a2da503c295
1539433083384d
hex1c77db11261b

31301102020123 has 8 divisors (see below), whose sum is σ = 34087630550400. Its totient is φ = 28568680840128.

The previous prime is 31301102020081. The next prime is 31301102020127. The reversal of 31301102020123 is 32102020110313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31301102020123 - 229 = 31300565149211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31301102020123.

It is not an unprimeable number, because it can be changed into a prime (31301102020127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13526836363 + ... + 13526838676.

It is an arithmetic number, because the mean of its divisors is an integer number (4260953818800).

Almost surely, 231301102020123 is an apocalyptic number.

31301102020123 is a deficient number, since it is larger than the sum of its proper divisors (2786528530277).

31301102020123 is a wasteful number, since it uses less digits than its factorization.

31301102020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27053675141.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31301102020123 its reverse (32102020110313), we get a palindrome (63403122130436).

The spelling of 31301102020123 in words is "thirty-one trillion, three hundred one billion, one hundred two million, twenty thousand, one hundred twenty-three".

Divisors: 1 13 89 1157 27053675039 351697775507 2407777078471 31301102020123