230231131331 has 4 divisors (see below), whose sum is σ = 230233544112. Its totient is φ = 230228718552.

The previous prime is 230231131307. The next prime is 230231131357. The reversal of 230231131331 is 133131132032.

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-230231131331 is a prime.

It is a super-2 number, since 2×230231131331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230231131297 and 230231131306.

It is not an unprimeable number, because it can be changed into a prime (230231131391) 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, 1057100 + ... + 1256153.

It is an arithmetic number, because the mean of its divisors is an integer number (57558386028).

Almost surely, 2^230231131331 is an apocalyptic number.

230231131331 is a deficient number, since it is larger than the sum of its proper divisors (2412781).

230231131331 is an equidigital number, since it uses as much as digits as its factorization.

230231131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412780.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 230231131331 its reverse (133131132032), we get a palindrome (363362263363).

The spelling of 230231131331 in words is "two hundred thirty billion, two hundred thirty-one million, one hundred thirty-one thousand, three hundred thirty-one".