1303399971 has 8 divisors (see below), whose sum is σ = 1930962960. Its totient is φ = 868933296.

The previous prime is 1303399967. The next prime is 1303400011. The reversal of 1303399971 is 1799933031.

It is not a de Polignac number, because 1303399971 - 2² = 1303399967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1303399931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24137010 + ... + 24137063.

It is an arithmetic number, because the mean of its divisors is an integer number (241370370).

Almost surely, 2^1303399971 is an apocalyptic number.

1303399971 is a deficient number, since it is larger than the sum of its proper divisors (627562989).

1303399971 is an equidigital number, since it uses as much as digits as its factorization.

1303399971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48274082 (or 48274076 counting only the distinct ones).

The product of its (nonzero) digits is 137781, while the sum is 45.

The square root of 1303399971 is about 36102.6310814046. The cubic root of 1303399971 is about 1092.3435173942.

The spelling of 1303399971 in words is "one billion, three hundred three million, three hundred ninety-nine thousand, nine hundred seventy-one".