21323433432312 has 48 divisors (see below), whose sum is σ = 63001053325080. Its totient is φ = 6461646494400.

The previous prime is 21323433432283. The next prime is 21323433432313.

21323433432312 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 3 + 4 + 334 + 3 + 2 + 312 = 666.

21323433432312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21323433432312² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 (21323433432313) 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, 13461762739 + ... + 13461764322.

Almost surely, 2^{21323433432312} is an apocalyptic number.

21323433432312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21323433432312 is an abundant number, since it is smaller than the sum of its proper divisors (41677619892768).

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

21323433432312 is a wasteful number, since it uses less digits than its factorization.

21323433432312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26923527084 (or 26923527077 counting only the distinct ones).

The product of its digits is 186624, while the sum is 36.

It can be divided in two parts, 2132343 and 3432312, that added together give a palindrome (5564655).

The spelling of 21323433432312 in words is "twenty-one trillion, three hundred twenty-three billion, four hundred thirty-three million, four hundred thirty-two thousand, three hundred twelve".