231121212200133 has 32 divisors (see below), whose sum is σ = 315800387464320. Its totient is φ = 150272321955840.

The previous prime is 231121212200113. The next prime is 231121212200147. The reversal of 231121212200133 is 331002212121132.

It is not a de Polignac number, because 231121212200133 - 2⁶ = 231121212200069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231121212200113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232498273 + ... + 233490233.

It is an arithmetic number, because the mean of its divisors is an integer number (9868762108260).

Almost surely, 2^{231121212200133} is an apocalyptic number.

It is an amenable number.

231121212200133 is a deficient number, since it is larger than the sum of its proper divisors (84679175264187).

231121212200133 is a wasteful number, since it uses less digits than its factorization.

231121212200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994709.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 231121212200133 its reverse (331002212121132), we get a palindrome (562123424321265).

The spelling of 231121212200133 in words is "two hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred thousand, one hundred thirty-three".