231024613 has 2 divisors, whose sum is σ = 231024614. Its totient is φ = 231024612.

The previous prime is 231024593. The next prime is 231024641. The reversal of 231024613 is 316420132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173765124 + 57259489 = 13182^2 + 7567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231024613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231094613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115512306 + 115512307.

It is an arithmetic number, because the mean of its divisors is an integer number (115512307).

Almost surely, 2^231024613 is an apocalyptic number.

It is an amenable number.

231024613 is a deficient number, since it is larger than the sum of its proper divisors (1).

231024613 is an equidigital number, since it uses as much as digits as its factorization.

231024613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231024613 is about 15199.4938402567. The cubic root of 231024613 is about 613.6010354375.

Adding to 231024613 its reverse (316420132), we get a palindrome (547444745).

The spelling of 231024613 in words is "two hundred thirty-one million, twenty-four thousand, six hundred thirteen".