203004242131 has 4 divisors (see below), whose sum is σ = 211830513552. Its totient is φ = 194177970712.

The previous prime is 203004242099. The next prime is 203004242137. The reversal of 203004242131 is 131242400302.

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 203004242131 - 2⁵ = 203004242099 is a prime.

It is a super-2 number, since 2×203004242131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203004242137) 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, 4413135676 + ... + 4413135721.

It is an arithmetic number, because the mean of its divisors is an integer number (52957628388).

Almost surely, 2^203004242131 is an apocalyptic number.

203004242131 is a deficient number, since it is larger than the sum of its proper divisors (8826271421).

203004242131 is an equidigital number, since it uses as much as digits as its factorization.

203004242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8826271420.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203004242131 its reverse (131242400302), we get a palindrome (334246642433).

The spelling of 203004242131 in words is "two hundred three billion, four million, two hundred forty-two thousand, one hundred thirty-one".