21112032334 has 4 divisors (see below), whose sum is σ = 31668048504. Its totient is φ = 10556016166.

The previous prime is 21112032311. The next prime is 21112032341. The reversal of 21112032334 is 43323021112.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×21112032334² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278008082 + ... + 5278008085.

It is an arithmetic number, because the mean of its divisors is an integer number (7917012126).

Almost surely, 2^21112032334 is an apocalyptic number.

21112032334 is a deficient number, since it is larger than the sum of its proper divisors (10556016170).

21112032334 is a wasteful number, since it uses less digits than its factorization.

21112032334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556016169.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21112032334 its reverse (43323021112), we get a palindrome (64435053446).

The spelling of 21112032334 in words is "twenty-one billion, one hundred twelve million, thirty-two thousand, three hundred thirty-four".