20232144553432 has 32 divisors (see below), whose sum is σ = 43354750713120. Its totient is φ = 8670888046080.

The previous prime is 20232144553363. The next prime is 20232144553433. The reversal of 20232144553432 is 23435544123202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232144553433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22397082 + ... + 23282902.

It is an arithmetic number, because the mean of its divisors is an integer number (1354835959785).

Almost surely, 2^{20232144553432} is an apocalyptic number.

It is an amenable number.

20232144553432 is an abundant number, since it is smaller than the sum of its proper divisors (23122606159688).

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

20232144553432 is a wasteful number, since it uses less digits than its factorization.

20232144553432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293691 (or 1293687 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 20232144553432 its reverse (23435544123202), we get a palindrome (43667688676634).

The spelling of 20232144553432 in words is "twenty trillion, two hundred thirty-two billion, one hundred forty-four million, five hundred fifty-three thousand, four hundred thirty-two".