202111232312 has 16 divisors (see below), whose sum is σ = 413409339000. Its totient is φ = 91868741920.

The previous prime is 202111232251. The next prime is 202111232321. The reversal of 202111232312 is 213232111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148359187 + ... + 1148359362.

Almost surely, 2^202111232312 is an apocalyptic number.

202111232312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202111232312 is an abundant number, since it is smaller than the sum of its proper divisors (211298106688).

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

202111232312 is a wasteful number, since it uses less digits than its factorization.

202111232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296718566 (or 2296718562 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202111232312 its reverse (213232111202), we get a palindrome (415343343514).

The spelling of 202111232312 in words is "two hundred two billion, one hundred eleven million, two hundred thirty-two thousand, three hundred twelve".