230212131 has 4 divisors (see below), whose sum is σ = 306949512. Its totient is φ = 153474752.

The previous prime is 230212093. The next prime is 230212139. The reversal of 230212131 is 131212032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230212131 is a prime.

It is a super-2 number, since 2×230212131² = 105995250519122322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230212131.

It is not an unprimeable number, because it can be changed into a prime (230212139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38368686 + ... + 38368691.

It is an arithmetic number, because the mean of its divisors is an integer number (76737378).

Almost surely, 2^230212131 is an apocalyptic number.

230212131 is a deficient number, since it is larger than the sum of its proper divisors (76737381).

230212131 is an equidigital number, since it uses as much as digits as its factorization.

230212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76737380.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 230212131 is about 15172.7430282069. The cubic root of 230212131 is about 612.8808735369.

Adding to 230212131 its reverse (131212032), we get a palindrome (361424163).

Subtracting from 230212131 its reverse (131212032), we obtain a palindrome (99000099).

It can be divided in two parts, 23021 and 2131, that added together give a palindrome (25152).

The spelling of 230212131 in words is "two hundred thirty million, two hundred twelve thousand, one hundred thirty-one".