123051142253345 has 16 divisors (see below), whose sum is σ = 147681126702288. Its totient is φ = 98427744030720.

The previous prime is 123051142253323. The next prime is 123051142253411. The reversal of 123051142253345 is 543352241150321.

It can be written as a sum of positive squares in 8 ways, for example, as 8084218412176 + 114966923841169 = 2843276^2 + 10722263^2 .

It is not a de Polignac number, because 123051142253345 - 2²² = 123051138059041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775159627 + ... + 1775228943.

It is an arithmetic number, because the mean of its divisors is an integer number (9230070418893).

Almost surely, 2^{123051142253345} is an apocalyptic number.

It is an amenable number.

123051142253345 is a deficient number, since it is larger than the sum of its proper divisors (24629984448943).

123051142253345 is a wasteful number, since it uses less digits than its factorization.

123051142253345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111700.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 123051142253345 in words is "one hundred twenty-three trillion, fifty-one billion, one hundred forty-two million, two hundred fifty-three thousand, three hundred forty-five".