202011011031 has 4 divisors (see below), whose sum is σ = 269348014712. Its totient is φ = 134674007352.

The previous prime is 202011011021. The next prime is 202011011047. The reversal of 202011011031 is 130110110202.

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

It is not a de Polignac number, because 202011011031 - 2⁶ = 202011010967 is a prime.

It is a super-2 number, since 2×202011011031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202011010998 and 202011011016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011011021) 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, 33668501836 + ... + 33668501841.

It is an arithmetic number, because the mean of its divisors is an integer number (67337003678).

Almost surely, 2^202011011031 is an apocalyptic number.

202011011031 is a deficient number, since it is larger than the sum of its proper divisors (67337003681).

202011011031 is an equidigital number, since it uses as much as digits as its factorization.

202011011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67337003680.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 202011011031 its reverse (130110110202), we get a palindrome (332121121233).

The spelling of 202011011031 in words is "two hundred two billion, eleven million, eleven thousand, thirty-one".