1330881731 has 2 divisors, whose sum is σ = 1330881732. Its totient is φ = 1330881730.

The previous prime is 1330881719. The next prime is 1330881743. The reversal of 1330881731 is 1371880331.

It is a balanced prime because it is at equal distance from previous prime (1330881719) and next prime (1330881743).

It is a cyclic number.

It is not a de Polignac number, because 1330881731 - 2⁶ = 1330881667 is a prime.

It is a super-2 number, since 2×1330881731² = 3542492363819112722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1330881691 and 1330881700.

It is not a weakly prime, because it can be changed into another prime (1330881631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665440865 + 665440866.

It is an arithmetic number, because the mean of its divisors is an integer number (665440866).

Almost surely, 2^1330881731 is an apocalyptic number.

1330881731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330881731 is an equidigital number, since it uses as much as digits as its factorization.

1330881731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1330881731 is about 36481.2517740277. The cubic root of 1330881731 is about 1099.9674180432.

The spelling of 1330881731 in words is "one billion, three hundred thirty million, eight hundred eighty-one thousand, seven hundred thirty-one".