230031221111 has 6 divisors (see below), whose sum is σ = 232979873112. Its totient is φ = 227119427340.

The previous prime is 230031221071. The next prime is 230031221129. The reversal of 230031221111 is 111122130032.

It is not a de Polignac number, because 230031221111 - 2²⁶ = 229964112247 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 230031221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230031221611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18422795 + ... + 18435276.

It is an arithmetic number, because the mean of its divisors is an integer number (38829978852).

Almost surely, 2^230031221111 is an apocalyptic number.

230031221111 is a deficient number, since it is larger than the sum of its proper divisors (2948652001).

230031221111 is an frugal number, since it uses more digits than its factorization.

230031221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36858229 (or 36858150 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 230031221111 its reverse (111122130032), we get a palindrome (341153351143).

The spelling of 230031221111 in words is "two hundred thirty billion, thirty-one million, two hundred twenty-one thousand, one hundred eleven".