123310012705 has 32 divisors (see below), whose sum is σ = 162503625600. Its totient is φ = 89082040320.

The previous prime is 123310012681. The next prime is 123310012733. The reversal of 123310012705 is 507210013321.

It is a happy number.

It is not a de Polignac number, because 123310012705 - 2⁷ = 123310012577 is a prime.

It is a super-2 number, since 2×123310012705² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123310012705.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5594767 + ... + 5616763.

It is an arithmetic number, because the mean of its divisors is an integer number (5078238300).

Almost surely, 2^123310012705 is an apocalyptic number.

It is an amenable number.

123310012705 is a deficient number, since it is larger than the sum of its proper divisors (39193612895).

123310012705 is a wasteful number, since it uses less digits than its factorization.

123310012705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22689.

The product of its (nonzero) digits is 1260, while the sum is 25.

The spelling of 123310012705 in words is "one hundred twenty-three billion, three hundred ten million, twelve thousand, seven hundred five".