123012315453321 has 96 divisors (see below), whose sum is σ = 210424031400960. Its totient is φ = 67754621555712.

The previous prime is 123012315453311. The next prime is 123012315453329. The reversal of 123012315453321 is 123354513210321.

123012315453321 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 1 + 2 + 315 + 4 + 5 + 332 + 1 = 666.

It is not a de Polignac number, because 123012315453321 - 2⁶ = 123012315453257 is a prime.

It is a super-3 number, since 3×123012315453321³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123012315453329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9676098061 + ... + 9676110773.

It is an arithmetic number, because the mean of its divisors is an integer number (2191916993760).

Almost surely, 2^{123012315453321} is an apocalyptic number.

It is an amenable number.

123012315453321 is a deficient number, since it is larger than the sum of its proper divisors (87411715947639).

123012315453321 is a wasteful number, since it uses less digits than its factorization.

123012315453321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21255 (or 21252 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 123012315453321 its reverse (123354513210321), we get a palindrome (246366828663642).

The spelling of 123012315453321 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifteen million, four hundred fifty-three thousand, three hundred twenty-one".