21323211192 has 48 divisors (see below), whose sum is σ = 58261451040. Its totient is φ = 7044834048.

The previous prime is 21323211191. The next prime is 21323211229. The reversal of 21323211192 is 29111232312.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323211191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1302288 + ... + 1318559.

It is an arithmetic number, because the mean of its divisors is an integer number (1213780230).

Almost surely, 2^21323211192 is an apocalyptic number.

It is an amenable number.

21323211192 is an abundant number, since it is smaller than the sum of its proper divisors (36938239848).

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

21323211192 is a wasteful number, since it uses less digits than its factorization.

21323211192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620972 (or 2620965 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The spelling of 21323211192 in words is "twenty-one billion, three hundred twenty-three million, two hundred eleven thousand, one hundred ninety-two".