123012240002015 has 48 divisors (see below), whose sum is σ = 183027148697088. Its totient is φ = 77713813577088.

The previous prime is 123012240001979. The next prime is 123012240002023. The reversal of 123012240002015 is 510200042210321.

It is not a de Polignac number, because 123012240002015 - 2⁶ = 123012240001951 is a prime.

It is a super-2 number, since 2×123012240002015² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16788539 + ... + 22975628.

It is an arithmetic number, because the mean of its divisors is an integer number (3813065597856).

Almost surely, 2^{123012240002015} is an apocalyptic number.

123012240002015 is a deficient number, since it is larger than the sum of its proper divisors (60014908695073).

123012240002015 is a wasteful number, since it uses less digits than its factorization.

123012240002015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39764728 (or 39764715 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 123012240002015 its reverse (510200042210321), we get a palindrome (633212282212336).

The spelling of 123012240002015 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, two thousand, fifteen".