31097126029 has 2 divisors, whose sum is σ = 31097126030. Its totient is φ = 31097126028.

The previous prime is 31097126023. The next prime is 31097126051. The reversal of 31097126029 is 92062179013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27952496100 + 3144629929 = 167190^2 + 56077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31097126029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31097125982 and 31097126000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31097126023) 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, 15548563014 + 15548563015.

It is an arithmetic number, because the mean of its divisors is an integer number (15548563015).

Almost surely, 2^31097126029 is an apocalyptic number.

It is an amenable number.

31097126029 is a deficient number, since it is larger than the sum of its proper divisors (1).

31097126029 is an equidigital number, since it uses as much as digits as its factorization.

31097126029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 31097126029 in words is "thirty-one billion, ninety-seven million, one hundred twenty-six thousand, twenty-nine".