11331331129 has 2 divisors, whose sum is σ = 11331331130. Its totient is φ = 11331331128.

The previous prime is 11331331073. The next prime is 11331331163. The reversal of 11331331129 is 92113313311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9951060025 + 1380271104 = 99755^2 + 37152^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331331129 - 2⁷ = 11331331001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11331331097 and 11331331106.

It is not a weakly prime, because it can be changed into another prime (11331331189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665665564 + 5665665565.

It is an arithmetic number, because the mean of its divisors is an integer number (5665665565).

Almost surely, 2^11331331129 is an apocalyptic number.

It is an amenable number.

11331331129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331331129 is an equidigital number, since it uses as much as digits as its factorization.

11331331129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 28.

The spelling of 11331331129 in words is "eleven billion, three hundred thirty-one million, three hundred thirty-one thousand, one hundred twenty-nine".