1012023899 has 2 divisors, whose sum is σ = 1012023900. Its totient is φ = 1012023898.

The previous prime is 1012023827. The next prime is 1012023911. The reversal of 1012023899 is 9983202101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012023899 - 2²⁰ = 1010975323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1012020899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011949 + 506011950.

It is an arithmetic number, because the mean of its divisors is an integer number (506011950).

Almost surely, 2^1012023899 is an apocalyptic number.

1012023899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012023899 is an equidigital number, since it uses as much as digits as its factorization.

1012023899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1012023899 is about 31812.3230682703. The cubic root of 1012023899 is about 1003.9920089918.

The spelling of 1012023899 in words is "one billion, twelve million, twenty-three thousand, eight hundred ninety-nine".