123146613510523 has 8 divisors (see below), whose sum is σ = 124631398080000. Its totient is φ = 121661854903848.

The previous prime is 123146613510509. The next prime is 123146613510563. The reversal of 123146613510523 is 325015316641321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123146613510523 is a prime.

It is a super-2 number, since 2×123146613510523² (a number of 29 digits) contains 22 as substring.

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 123146613510523.

It is not an unprimeable number, because it can be changed into a prime (123146613510563) 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, 3138478 + ... + 16004476.

It is an arithmetic number, because the mean of its divisors is an integer number (15578924760000).

Almost surely, 2^{123146613510523} is an apocalyptic number.

123146613510523 is a deficient number, since it is larger than the sum of its proper divisors (1484784569477).

123146613510523 is a wasteful number, since it uses less digits than its factorization.

123146613510523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981401.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 123146613510523 in words is "one hundred twenty-three trillion, one hundred forty-six billion, six hundred thirteen million, five hundred ten thousand, five hundred twenty-three".