231012479 has 2 divisors, whose sum is σ = 231012480. Its totient is φ = 231012478.

The previous prime is 231012427. The next prime is 231012493. The reversal of 231012479 is 974210132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231012479 - 2¹² = 231008383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231012499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115506239 + 115506240.

It is an arithmetic number, because the mean of its divisors is an integer number (115506240).

Almost surely, 2^231012479 is an apocalyptic number.

231012479 is a deficient number, since it is larger than the sum of its proper divisors (1).

231012479 is an equidigital number, since it uses as much as digits as its factorization.

231012479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 231012479 is about 15199.0946769865. The cubic root of 231012479 is about 613.5902926206.

The spelling of 231012479 in words is "two hundred thirty-one million, twelve thousand, four hundred seventy-nine".