123001312134 has 32 divisors (see below), whose sum is σ = 262461741696. Its totient is φ = 38294072960.

The previous prime is 123001312121. The next prime is 123001312157. The reversal of 123001312134 is 431213100321.

It is a self number, because there is not a number n which added to its sum of digits gives 123001312134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4589292 + ... + 4616015.

It is an arithmetic number, because the mean of its divisors is an integer number (8201929428).

Almost surely, 2^123001312134 is an apocalyptic number.

123001312134 is an abundant number, since it is smaller than the sum of its proper divisors (139460429562).

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

123001312134 is a wasteful number, since it uses less digits than its factorization.

123001312134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205460.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123001312134 its reverse (431213100321), we get a palindrome (554214412455).

The spelling of 123001312134 in words is "one hundred twenty-three billion, one million, three hundred twelve thousand, one hundred thirty-four".