231023071739 has 4 divisors (see below), whose sum is σ = 233618836680. Its totient is φ = 228427306800.

The previous prime is 231023071733. The next prime is 231023071759. The reversal of 231023071739 is 937170320132.

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

It is a cyclic number.

It is not a de Polignac number, because 231023071739 - 2⁴ = 231023071723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231023071733) 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, 1297882337 + ... + 1297882514.

It is an arithmetic number, because the mean of its divisors is an integer number (58404709170).

Almost surely, 2^231023071739 is an apocalyptic number.

231023071739 is a deficient number, since it is larger than the sum of its proper divisors (2595764941).

231023071739 is an equidigital number, since it uses as much as digits as its factorization.

231023071739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595764940.

The product of its (nonzero) digits is 47628, while the sum is 38.

The spelling of 231023071739 in words is "two hundred thirty-one billion, twenty-three million, seventy-one thousand, seven hundred thirty-nine".