203122133131 has 2 divisors, whose sum is σ = 203122133132. Its totient is φ = 203122133130.

The previous prime is 203122133099. The next prime is 203122133167. The reversal of 203122133131 is 131331221302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203122133131 - 2⁵ = 203122133099 is a prime.

It is a super-2 number, since 2×203122133131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203122137131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561066565 + 101561066566.

It is an arithmetic number, because the mean of its divisors is an integer number (101561066566).

Almost surely, 2^203122133131 is an apocalyptic number.

203122133131 is a deficient number, since it is larger than the sum of its proper divisors (1).

203122133131 is an equidigital number, since it uses as much as digits as its factorization.

203122133131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203122133131 its reverse (131331221302), we get a palindrome (334453354433).

The spelling of 203122133131 in words is "two hundred three billion, one hundred twenty-two million, one hundred thirty-three thousand, one hundred thirty-one".