123012240010055 has 32 divisors (see below), whose sum is σ = 163316715264000. Its totient is φ = 88195608659200.

The previous prime is 123012240009983. The next prime is 123012240010067. The reversal of 123012240010055 is 550010042210321.

It is not a de Polignac number, because 123012240010055 - 2¹⁶ = 123012239944519 is a prime.

It is a super-2 number, since 2×123012240010055² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43010546 + ... + 45781344.

It is an arithmetic number, because the mean of its divisors is an integer number (5103647352000).

Almost surely, 2^{123012240010055} is an apocalyptic number.

123012240010055 is a deficient number, since it is larger than the sum of its proper divisors (40304475253945).

123012240010055 is a wasteful number, since it uses less digits than its factorization.

123012240010055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782255.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 123012240010055 its reverse (550010042210321), we get a palindrome (673022282220376).

The spelling of 123012240010055 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, ten thousand, fifty-five".