31334936929 has 2 divisors, whose sum is σ = 31334936930. Its totient is φ = 31334936928.

The previous prime is 31334936923. The next prime is 31334936957. The reversal of 31334936929 is 92963943313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23839360000 + 7495576929 = 154400^2 + 86577^2 .

It is an emirp because it is prime and its reverse (92963943313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31334936929 - 2³ = 31334936921 is a prime.

It is not a weakly prime, because it can be changed into another prime (31334936921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15667468464 + 15667468465.

It is an arithmetic number, because the mean of its divisors is an integer number (15667468465).

Almost surely, 2^31334936929 is an apocalyptic number.

It is an amenable number.

31334936929 is a deficient number, since it is larger than the sum of its proper divisors (1).

31334936929 is an equidigital number, since it uses as much as digits as its factorization.

31334936929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2834352, while the sum is 52.

The spelling of 31334936929 in words is "thirty-one billion, three hundred thirty-four million, nine hundred thirty-six thousand, nine hundred twenty-nine".