123012315511105 has 32 divisors (see below), whose sum is σ = 149865673824000. Its totient is φ = 96920088559872.

The previous prime is 123012315511097. The next prime is 123012315511159. The reversal of 123012315511105 is 501115513210321.

It is a cyclic number.

It is not a de Polignac number, because 123012315511105 - 2³ = 123012315511097 is a prime.

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, 1743608371 + ... + 1743678919.

It is an arithmetic number, because the mean of its divisors is an integer number (4683302307000).

Almost surely, 2^{123012315511105} is an apocalyptic number.

It is an amenable number.

123012315511105 is a deficient number, since it is larger than the sum of its proper divisors (26853358312895).

123012315511105 is a wasteful number, since it uses less digits than its factorization.

123012315511105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89673.

The product of its (nonzero) digits is 4500, while the sum is 31.

Adding to 123012315511105 its reverse (501115513210321), we get a palindrome (624127828721426).

The spelling of 123012315511105 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifteen million, five hundred eleven thousand, one hundred five".