203402302031 has 8 divisors (see below), whose sum is σ = 204003273600. Its totient is φ = 202801434912.

The previous prime is 203402302013. The next prime is 203402302057. The reversal of 203402302031 is 130203204302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203402302031 - 2⁶ = 203402301967 is a prime.

It is a super-2 number, since 2×203402302031² (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 = 203402301994 and 203402302012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203402302001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5724386 + ... + 5759808.

It is an arithmetic number, because the mean of its divisors is an integer number (25500409200).

Almost surely, 2^203402302031 is an apocalyptic number.

203402302031 is a deficient number, since it is larger than the sum of its proper divisors (600971569).

203402302031 is a wasteful number, since it uses less digits than its factorization.

203402302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52225.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203402302031 its reverse (130203204302), we get a palindrome (333605506333).

The spelling of 203402302031 in words is "two hundred three billion, four hundred two million, three hundred two thousand, thirty-one".