39231021232013 has 8 divisors (see below), whose sum is σ = 42248983974456. Its totient is φ = 36213085900800.

The previous prime is 39231021232009. The next prime is 39231021232033. The reversal of 39231021232013 is 31023212013293.

It can be written as a sum of positive squares in 4 ways, for example, as 1474383634564 + 37756637597449 = 1214242^2 + 6144643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39231021232013 - 2² = 39231021232009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39231021232003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3830948 + ... + 9650813.

It is an arithmetic number, because the mean of its divisors is an integer number (5281122996807).

Almost surely, 2^{39231021232013} is an apocalyptic number.

It is an amenable number.

39231021232013 is a deficient number, since it is larger than the sum of its proper divisors (3017962742443).

39231021232013 is a wasteful number, since it uses less digits than its factorization.

39231021232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13705615.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 39231021232013 in words is "thirty-nine trillion, two hundred thirty-one billion, twenty-one million, two hundred thirty-two thousand, thirteen".