31130522029 has 2 divisors, whose sum is σ = 31130522030. Its totient is φ = 31130522028.

The previous prime is 31130522023. The next prime is 31130522099. The reversal of 31130522029 is 92022503113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30733596100 + 396925929 = 175310^2 + 19923^2 .

It is an emirp because it is prime and its reverse (92022503113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31130522029 - 2²⁷ = 30996304301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31130521988 and 31130522006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130522023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565261014 + 15565261015.

It is an arithmetic number, because the mean of its divisors is an integer number (15565261015).

Almost surely, 2^31130522029 is an apocalyptic number.

It is an amenable number.

31130522029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130522029 is an equidigital number, since it uses as much as digits as its factorization.

31130522029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 31130522029 in words is "thirty-one billion, one hundred thirty million, five hundred twenty-two thousand, twenty-nine".