123101321211209 has 16 divisors (see below), whose sum is σ = 137183509267200. Its totient is φ = 109502169173760.

The previous prime is 123101321211179. The next prime is 123101321211223. The reversal of 123101321211209 is 902112123101321.

It is not a de Polignac number, because 123101321211209 - 2³² = 123097026243913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123101321211229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27309854 + ... + 31496519.

It is an arithmetic number, because the mean of its divisors is an integer number (8573969329200).

Almost surely, 2^{123101321211209} is an apocalyptic number.

It is an amenable number.

123101321211209 is a deficient number, since it is larger than the sum of its proper divisors (14082188055991).

123101321211209 is a wasteful number, since it uses less digits than its factorization.

123101321211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58810480.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 123101321211209 in words is "one hundred twenty-three trillion, one hundred one billion, three hundred twenty-one million, two hundred eleven thousand, two hundred nine".