203696031 has 32 divisors (see below), whose sum is σ = 346503168. Its totient is φ = 103350240.

The previous prime is 203696011. The next prime is 203696033. The reversal of 203696031 is 130696302.

It is a happy number.

203696031 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 203696031 - 2⁶ = 203695967 is a prime.

It is a super-2 number, since 2×203696031² = 82984146090305922, 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 203696031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203696033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321 + ... + 20186.

It is an arithmetic number, because the mean of its divisors is an integer number (10828224).

Almost surely, 2^203696031 is an apocalyptic number.

203696031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

203696031 is a deficient number, since it is larger than the sum of its proper divisors (142807137).

203696031 is a wasteful number, since it uses less digits than its factorization.

203696031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20571.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 203696031 is about 14272.2118468022. The cubic root of 203696031 is about 588.3840016782.

The spelling of 203696031 in words is "two hundred three million, six hundred ninety-six thousand, thirty-one".