31934005129 has 4 divisors (see below), whose sum is σ = 34390467076. Its totient is φ = 29477543184.

The previous prime is 31934005091. The next prime is 31934005151. The reversal of 31934005129 is 92150043913.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4125107529 + 27808897600 = 64227^2 + 166760^2 .

It is a cyclic number.

It is not a de Polignac number, because 31934005129 - 2¹⁹ = 31933480841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31934005729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228230954 + ... + 1228230979.

It is an arithmetic number, because the mean of its divisors is an integer number (8597616769).

Almost surely, 2^31934005129 is an apocalyptic number.

It is an amenable number.

31934005129 is a deficient number, since it is larger than the sum of its proper divisors (2456461947).

31934005129 is a wasteful number, since it uses less digits than its factorization.

31934005129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456461946.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 31934005129 in words is "thirty-one billion, nine hundred thirty-four million, five thousand, one hundred twenty-nine".