202003431 has 12 divisors (see below), whose sum is σ = 313311672. Its totient is φ = 115430448.

The previous prime is 202003429. The next prime is 202003447. The reversal of 202003431 is 134300202.

202003431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202003431 - 2¹ = 202003429 is a prime.

It is a super-2 number, since 2×202003431² = 81610772271543522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202003431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202003031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 686940 + ... + 687233.

It is an arithmetic number, because the mean of its divisors is an integer number (26109306).

Almost surely, 2^202003431 is an apocalyptic number.

202003431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202003431 is a deficient number, since it is larger than the sum of its proper divisors (111308241).

202003431 is a wasteful number, since it uses less digits than its factorization.

202003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374190 (or 1374183 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 202003431 is about 14212.7911051982. The cubic root of 202003431 is about 586.7497528172.

Adding to 202003431 its reverse (134300202), we get a palindrome (336303633).

The spelling of 202003431 in words is "two hundred two million, three thousand, four hundred thirty-one".