12530623136 has 24 divisors (see below), whose sum is σ = 24675899220. Its totient is φ = 6263728128.

The previous prime is 12530623121. The next prime is 12530623151. The reversal of 12530623136 is 63132603521.

It is an interprime number because it is at equal distance from previous prime (12530623121) and next prime (12530623151).

It can be written as a sum of positive squares in 2 ways, for example, as 12530563600 + 59536 = 111940^2 + 244^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84710 + ... + 179546.

Almost surely, 2^12530623136 is an apocalyptic number.

12530623136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12530623136 is a deficient number, since it is larger than the sum of its proper divisors (12145276084).

12530623136 is an equidigital number, since it uses as much as digits as its factorization.

12530623136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98976 (or 98968 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 12530623136 in words is "twelve billion, five hundred thirty million, six hundred twenty-three thousand, one hundred thirty-six".