231001213100 has 72 divisors (see below), whose sum is σ = 581433619200. Its totient is φ = 78018304320.

The previous prime is 231001213043. The next prime is 231001213103. The reversal of 231001213100 is 1312100132.

It is a super-2 number, since 2×231001213100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (231001213103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2415800 + ... + 2509599.

Almost surely, 2^231001213100 is an apocalyptic number.

231001213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231001213100 is an abundant number, since it is smaller than the sum of its proper divisors (350432406100).

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

231001213100 is a wasteful number, since it uses less digits than its factorization.

231001213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925487 (or 4925480 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231001213100 its reverse (1312100132), we get a palindrome (232313313232).

The spelling of 231001213100 in words is "two hundred thirty-one billion, one million, two hundred thirteen thousand, one hundred".