31130522099 has 2 divisors, whose sum is σ = 31130522100. Its totient is φ = 31130522098.

The previous prime is 31130522029. The next prime is 31130522117. The reversal of 31130522099 is 99022503113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31130522099 - 2²⁰ = 31129473523 is a prime.

It is not a weakly prime, because it can be changed into another prime (31130522029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565261049 + 15565261050.

It is an arithmetic number, because the mean of its divisors is an integer number (15565261050).

Almost surely, 2^31130522099 is an apocalyptic number.

31130522099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130522099 is an equidigital number, since it uses as much as digits as its factorization.

31130522099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 31130522099 in words is "thirty-one billion, one hundred thirty million, five hundred twenty-two thousand, ninety-nine".