100312011231 has 8 divisors (see below), whose sum is σ = 141616957104. Its totient is φ = 62940869760.

The previous prime is 100312011223. The next prime is 100312011263. The reversal of 100312011231 is 132110213001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100312011231 - 2³ = 100312011223 is a prime.

It is a super-2 number, since 2×100312011231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100312011231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312011271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983451040 + ... + 983451141.

It is an arithmetic number, because the mean of its divisors is an integer number (17702119638).

Almost surely, 2^100312011231 is an apocalyptic number.

100312011231 is a deficient number, since it is larger than the sum of its proper divisors (41304945873).

100312011231 is a wasteful number, since it uses less digits than its factorization.

100312011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966902201.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100312011231 its reverse (132110213001), we get a palindrome (232422224232).

The spelling of 100312011231 in words is "one hundred billion, three hundred twelve million, eleven thousand, two hundred thirty-one".