100531172511236 has 12 divisors (see below), whose sum is σ = 178156508248320. Its totient is φ = 49629313011720.

The previous prime is 100531172511223. The next prime is 100531172511239. The reversal of 100531172511236 is 632115271135001.

It is a self number, because there is not a number n which added to its sum of digits gives 100531172511236.

It is not an unprimeable number, because it can be changed into a prime (100531172511239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159068310620 + ... + 159068311251.

It is an arithmetic number, because the mean of its divisors is an integer number (14846375687360).

Almost surely, 2^{100531172511236} is an apocalyptic number.

It is an amenable number.

100531172511236 is a deficient number, since it is larger than the sum of its proper divisors (77625335737084).

100531172511236 is a wasteful number, since it uses less digits than its factorization.

100531172511236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318136621954 (or 318136621952 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 100531172511236 in words is "one hundred trillion, five hundred thirty-one billion, one hundred seventy-two million, five hundred eleven thousand, two hundred thirty-six".