20231232020 has 12 divisors (see below), whose sum is σ = 42485587284. Its totient is φ = 8092492800.

The previous prime is 20231232011. The next prime is 20231232031. The reversal of 20231232020 is 2023213202.

It can be written as a sum of positive squares in 2 ways, for example, as 11083457284 + 9147774736 = 105278^2 + 95644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20231232020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505780781 + ... + 505780820.

It is an arithmetic number, because the mean of its divisors is an integer number (3540465607).

Almost surely, 2^20231232020 is an apocalyptic number.

20231232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20231232020 is an abundant number, since it is smaller than the sum of its proper divisors (22254355264).

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

20231232020 is a wasteful number, since it uses less digits than its factorization.

20231232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011561610 (or 1011561608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20231232020 its reverse (2023213202), we get a palindrome (22254445222).

The spelling of 20231232020 in words is "twenty billion, two hundred thirty-one million, two hundred thirty-two thousand, twenty".