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103012112310031 = 399739257698429
BaseRepresentation
bin10111011011000001100000…
…010111001001111100001111
3111111201212021020000220111001
4113123001200113021330033
5102000222301222410111
61003031035555041131
730461244113265511
oct2733014027117417
9444655236026431
10103012112310031
112a906211973731
12b67852bba01a7
1345630011712b2
141b61b545ddbb1
15bd98ac56b1c1
hex5db0605c9f0f

103012112310031 has 4 divisors (see below), whose sum is σ = 103012370408200. Its totient is φ = 103011854211864.

The previous prime is 103012112310013. The next prime is 103012112310067. The reversal of 103012112310031 is 130013211210301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103012112310031 - 25 = 103012112309999 is a prime.

It is a super-2 number, since 2×1030121123100312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103012112309990 and 103012112310008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103012112314031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128449476 + ... + 129248953.

It is an arithmetic number, because the mean of its divisors is an integer number (25753092602050).

Almost surely, 2103012112310031 is an apocalyptic number.

103012112310031 is a deficient number, since it is larger than the sum of its proper divisors (258098169).

103012112310031 is an equidigital number, since it uses as much as digits as its factorization.

103012112310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258098168.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 103012112310031 its reverse (130013211210301), we get a palindrome (233025323520332).

The spelling of 103012112310031 in words is "one hundred three trillion, twelve billion, one hundred twelve million, three hundred ten thousand, thirty-one".

Divisors: 1 399739 257698429 103012112310031