202042931 has 4 divisors (see below), whose sum is σ = 202481664. Its totient is φ = 201604200.

The previous prime is 202042927. The next prime is 202042933. The reversal of 202042931 is 139240202.

202042931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202042931 - 2² = 202042927 is a prime.

It is a super-2 number, since 2×202042931² = 81642691934141522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202042897 and 202042906.

It is not an unprimeable number, because it can be changed into a prime (202042933) 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, 218675 + ... + 219596.

It is an arithmetic number, because the mean of its divisors is an integer number (50620416).

Almost surely, 2^202042931 is an apocalyptic number.

202042931 is a deficient number, since it is larger than the sum of its proper divisors (438733).

202042931 is an equidigital number, since it uses as much as digits as its factorization.

202042931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438732.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 202042931 is about 14214.1806306238. The cubic root of 202042931 is about 586.7879949148.

The spelling of 202042931 in words is "two hundred two million, forty-two thousand, nine hundred thirty-one".