235131104129 has 2 divisors, whose sum is σ = 235131104130. Its totient is φ = 235131104128.

The previous prime is 235131104107. The next prime is 235131104141. The reversal of 235131104129 is 921401131532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191021443600 + 44109660529 = 437060^2 + 210023^2 .

It is a cyclic number.

It is not a de Polignac number, because 235131104129 - 2²⁸ = 234862668673 is a prime.

It is a super-2 number, since 2×235131104129² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 235131104095 and 235131104104.

It is not a weakly prime, because it can be changed into another prime (235131104179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117565552064 + 117565552065.

It is an arithmetic number, because the mean of its divisors is an integer number (117565552065).

Almost surely, 2^235131104129 is an apocalyptic number.

It is an amenable number.

235131104129 is a deficient number, since it is larger than the sum of its proper divisors (1).

235131104129 is an equidigital number, since it uses as much as digits as its factorization.

235131104129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 235131104129 in words is "two hundred thirty-five billion, one hundred thirty-one million, one hundred four thousand, one hundred twenty-nine".