231100221011100 has 144 divisors (see below), whose sum is σ = 804390944851200. Its totient is φ = 50042754616320.

The previous prime is 231100221011039. The next prime is 231100221011131. The reversal of 231100221011100 is 1110122001132.

231100221011100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231100221011100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2895952845 + ... + 2896032644.

Almost surely, 2^{231100221011100} is an apocalyptic number.

231100221011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231100221011100 is an abundant number, since it is smaller than the sum of its proper divisors (573290723840100).

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

231100221011100 is a wasteful number, since it uses less digits than its factorization.

231100221011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791985532 (or 5791985525 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 231100221011100 its reverse (1110122001132), we get a palindrome (232210343012232).

The spelling of 231100221011100 in words is "two hundred thirty-one trillion, one hundred billion, two hundred twenty-one million, eleven thousand, one hundred".