123351233045512 has 8 divisors (see below), whose sum is σ = 231283561960350. Its totient is φ = 61675616522752.

The previous prime is 123351233045437. The next prime is 123351233045549. The reversal of 123351233045512 is 215540332153321.

It can be written as a sum of positive squares in only one way, i.e., 73909887691396 + 49441345354116 = 8597086^2 + 7031454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7709452065337 + ... + 7709452065352.

Almost surely, 2^{123351233045512} is an apocalyptic number.

It is an amenable number.

123351233045512 is a deficient number, since it is larger than the sum of its proper divisors (107932328914838).

123351233045512 is a wasteful number, since it uses less digits than its factorization.

123351233045512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15418904130695 (or 15418904130691 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 123351233045512 its reverse (215540332153321), we get a palindrome (338891565198833).

The spelling of 123351233045512 in words is "one hundred twenty-three trillion, three hundred fifty-one billion, two hundred thirty-three million, forty-five thousand, five hundred twelve".