1430312231 has 2 divisors, whose sum is σ = 1430312232. Its totient is φ = 1430312230.

The previous prime is 1430312203. The next prime is 1430312243. The reversal of 1430312231 is 1322130341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1430312231 - 2²⁶ = 1363203367 is a prime.

It is a super-2 number, since 2×1430312231² = 4091586156296394722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430312251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715156115 + 715156116.

It is an arithmetic number, because the mean of its divisors is an integer number (715156116).

Almost surely, 2^1430312231 is an apocalyptic number.

1430312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430312231 is an equidigital number, since it uses as much as digits as its factorization.

1430312231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1430312231 is about 37819.4689412741. The cubic root of 1430312231 is about 1126.7051622624.

Adding to 1430312231 its reverse (1322130341), we get a palindrome (2752442572).

The spelling of 1430312231 in words is "one billion, four hundred thirty million, three hundred twelve thousand, two hundred thirty-one".