123012353403455 has 16 divisors (see below), whose sum is σ = 148326817075200. Its totient is φ = 97935744940320.

The previous prime is 123012353403341. The next prime is 123012353403461. The reversal of 123012353403455 is 554304353210321.

It is not a de Polignac number, because 123012353403455 - 2¹² = 123012353399359 is a prime.

It is a congruent 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, 30884975 + ... + 34639664.

It is an arithmetic number, because the mean of its divisors is an integer number (9270426067200).

Almost surely, 2^{123012353403455} is an apocalyptic number.

123012353403455 is a deficient number, since it is larger than the sum of its proper divisors (25314463671745).

123012353403455 is a wasteful number, since it uses less digits than its factorization.

123012353403455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65526454.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 123012353403455 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifty-three million, four hundred three thousand, four hundred fifty-five".