1238130899 has 2 divisors, whose sum is σ = 1238130900. Its totient is φ = 1238130898.

The previous prime is 1238130869. The next prime is 1238130931. The reversal of 1238130899 is 9980318321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1238130899 - 2⁸ = 1238130643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1238130809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619065449 + 619065450.

It is an arithmetic number, because the mean of its divisors is an integer number (619065450).

Almost surely, 2^1238130899 is an apocalyptic number.

1238130899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238130899 is an equidigital number, since it uses as much as digits as its factorization.

1238130899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1238130899 is about 35187.0842639739. The cubic root of 1238130899 is about 1073.7970026356.

The spelling of 1238130899 in words is "one billion, two hundred thirty-eight million, one hundred thirty thousand, eight hundred ninety-nine".