231702045121 has 4 divisors (see below), whose sum is σ = 231855390144. Its totient is φ = 231548700100.

The previous prime is 231702045077. The next prime is 231702045137. The reversal of 231702045121 is 121540207132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231702045121 - 2¹⁹ = 231701520833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231702045121.

It is not an unprimeable number, because it can be changed into a prime (231702045161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76670245 + ... + 76673266.

It is an arithmetic number, because the mean of its divisors is an integer number (57963847536).

Almost surely, 2^231702045121 is an apocalyptic number.

It is an amenable number.

231702045121 is a deficient number, since it is larger than the sum of its proper divisors (153345023).

231702045121 is a wasteful number, since it uses less digits than its factorization.

231702045121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153345022.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 231702045121 in words is "two hundred thirty-one billion, seven hundred two million, forty-five thousand, one hundred twenty-one".