203013220131 has 10 divisors (see below), whose sum is σ = 303266662292. Its totient is φ = 135342146700.

The previous prime is 203013220129. The next prime is 203013220133. The reversal of 203013220131 is 131022310302.

It is an interprime number because it is at equal distance from previous prime (203013220129) and next prime (203013220133).

It is not a de Polignac number, because 203013220131 - 2¹ = 203013220129 is a prime.

It is a super-2 number, since 2×203013220131² (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 (203013220133) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1253167945 + ... + 1253168106.

Almost surely, 2^203013220131 is an apocalyptic number.

203013220131 is a deficient number, since it is larger than the sum of its proper divisors (100253442161).

203013220131 is an equidigital number, since it uses as much as digits as its factorization.

203013220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506336063 (or 2506336054 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203013220131 its reverse (131022310302), we get a palindrome (334035530433).

The spelling of 203013220131 in words is "two hundred three billion, thirteen million, two hundred twenty thousand, one hundred thirty-one".