1320461231 has 2 divisors, whose sum is σ = 1320461232. Its totient is φ = 1320461230.

The previous prime is 1320461209. The next prime is 1320461299. The reversal of 1320461231 is 1321640231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320461231 - 2¹⁴ = 1320444847 is a prime.

It is a super-2 number, since 2×1320461231² = 3487235725148070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320461197 and 1320461206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320461731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660230615 + 660230616.

It is an arithmetic number, because the mean of its divisors is an integer number (660230616).

Almost surely, 2^1320461231 is an apocalyptic number.

1320461231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320461231 is an equidigital number, since it uses as much as digits as its factorization.

1320461231 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 23.

The square root of 1320461231 is about 36338.1511775159. The cubic root of 1320461231 is about 1097.0890614067.

The spelling of 1320461231 in words is "one billion, three hundred twenty million, four hundred sixty-one thousand, two hundred thirty-one".