20232144553431 has 16 divisors (see below), whose sum is σ = 27046032156000. Its totient is φ = 13453177922688.

The previous prime is 20232144553363. The next prime is 20232144553433. The reversal of 20232144553431 is 13435544123202.

It is a happy number.

It is not a de Polignac number, because 20232144553431 - 2¹¹ = 20232144551383 is a prime.

It is a super-2 number, since 2×20232144553431² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20232144553431.

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 15 ways as a sum of consecutive naturals, for example, 82675305 + ... + 82919661.

It is an arithmetic number, because the mean of its divisors is an integer number (1690377009750).

Almost surely, 2^{20232144553431} is an apocalyptic number.

20232144553431 is a deficient number, since it is larger than the sum of its proper divisors (6813887602569).

20232144553431 is a wasteful number, since it uses less digits than its factorization.

20232144553431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315698.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 20232144553431 its reverse (13435544123202), we get a palindrome (33667688676633).

The spelling of 20232144553431 in words is "twenty trillion, two hundred thirty-two billion, one hundred forty-four million, five hundred fifty-three thousand, four hundred thirty-one".