15131309930 has 16 divisors (see below), whose sum is σ = 29712390624. Its totient is φ = 5502294480.

The previous prime is 15131309917. The next prime is 15131309953. The reversal of 15131309930 is 3990313151.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68778572 + ... + 68778791.

It is an arithmetic number, because the mean of its divisors is an integer number (1857024414).

Almost surely, 2^15131309930 is an apocalyptic number.

15131309930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15131309930 is a deficient number, since it is larger than the sum of its proper divisors (14581080694).

15131309930 is a wasteful number, since it uses less digits than its factorization.

15131309930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137557381.

The product of its (nonzero) digits is 10935, while the sum is 35.

The spelling of 15131309930 in words is "fifteen billion, one hundred thirty-one million, three hundred nine thousand, nine hundred thirty".