231012202020 has 72 divisors (see below), whose sum is σ = 687121466304. Its totient is φ = 57979528704.

The previous prime is 231012202007. The next prime is 231012202051. The reversal of 231012202020 is 20202210132.

It is a happy number.

231012202020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×231012202020³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6643912 + ... + 6678591.

Almost surely, 2^231012202020 is an apocalyptic number.

231012202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231012202020 is an abundant number, since it is smaller than the sum of its proper divisors (456109264284).

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

231012202020 is a wasteful number, since it uses less digits than its factorization.

231012202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13322549 (or 13322530 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 231012202020 its reverse (20202210132), we get a palindrome (251214412152).

The spelling of 231012202020 in words is "two hundred thirty-one billion, twelve million, two hundred two thousand, twenty".