123012403134 has 16 divisors (see below), whose sum is σ = 246028562688. Its totient is φ = 41003508312.

The previous prime is 123012403117. The next prime is 123012403177. The reversal of 123012403134 is 431304210321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449979 + ... + 669705.

It is an arithmetic number, because the mean of its divisors is an integer number (15376785168).

Almost surely, 2^123012403134 is an apocalyptic number.

123012403134 is an abundant number, since it is smaller than the sum of its proper divisors (123016159554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012403134 is a wasteful number, since it uses less digits than its factorization.

123012403134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313039.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123012403134 its reverse (431304210321), we get a palindrome (554316613455).

The spelling of 123012403134 in words is "one hundred twenty-three billion, twelve million, four hundred three thousand, one hundred thirty-four".