1299024131 has 2 divisors, whose sum is σ = 1299024132. Its totient is φ = 1299024130.

The previous prime is 1299024121. The next prime is 1299024161. The reversal of 1299024131 is 1314209921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1299024131 - 2¹⁴ = 1299007747 is a prime.

It is a super-2 number, since 2×1299024131² = 3374927385840610322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1299024121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649512065 + 649512066.

It is an arithmetic number, because the mean of its divisors is an integer number (649512066).

Almost surely, 2^1299024131 is an apocalyptic number.

1299024131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299024131 is an equidigital number, since it uses as much as digits as its factorization.

1299024131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1299024131 is about 36041.9773458671. The cubic root of 1299024131 is about 1091.1197232934.

The spelling of 1299024131 in words is "one billion, two hundred ninety-nine million, twenty-four thousand, one hundred thirty-one".