202020012031 has 4 divisors (see below), whose sum is σ = 202045389832. Its totient is φ = 201994634232.

The previous prime is 202020011993. The next prime is 202020012053. The reversal of 202020012031 is 130210020202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202020012031 - 2²⁵ = 201986457599 is a prime.

It is a super-2 number, since 2×202020012031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020022031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12676956 + ... + 12692881.

It is an arithmetic number, because the mean of its divisors is an integer number (50511347458).

Almost surely, 2^202020012031 is an apocalyptic number.

202020012031 is a deficient number, since it is larger than the sum of its proper divisors (25377801).

202020012031 is an equidigital number, since it uses as much as digits as its factorization.

202020012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25377800.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 202020012031 its reverse (130210020202), we get a palindrome (332230032233).

The spelling of 202020012031 in words is "two hundred two billion, twenty million, twelve thousand, thirty-one".