20202232233231 has 64 divisors (see below), whose sum is σ = 30501807223680. Its totient is φ = 13211735040000.

The previous prime is 20202232233191. The next prime is 20202232233233. The reversal of 20202232233231 is 13233223220202.

20202232233231 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 2 + 2 + 322 + 332 + 3 + 1 = 666.

It is not a de Polignac number, because 20202232233231 - 2⁷ = 20202232233103 is a prime.

It is a super-2 number, since 2×20202232233231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20202232233195 and 20202232233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202232233233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 947872431 + ... + 947893743.

It is an arithmetic number, because the mean of its divisors is an integer number (476590737870).

Almost surely, 2^{20202232233231} is an apocalyptic number.

20202232233231 is a deficient number, since it is larger than the sum of its proper divisors (10299574990449).

20202232233231 is a wasteful number, since it uses less digits than its factorization.

20202232233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22905 (or 22899 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20202232233231 its reverse (13233223220202), we get a palindrome (33435455453433).

The spelling of 20202232233231 in words is "twenty trillion, two hundred two billion, two hundred thirty-two million, two hundred thirty-three thousand, two hundred thirty-one".