12103564620 has 96 divisors (see below), whose sum is σ = 40415413248. Its totient is φ = 2646243072.

The previous prime is 12103564609. The next prime is 12103564631. The reversal of 12103564620 is 2646530121.

It is an interprime number because it is at equal distance from previous prime (12103564609) and next prime (12103564631).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616819 + ... + 636138.

It is an arithmetic number, because the mean of its divisors is an integer number (420993888).

Almost surely, 2^12103564620 is an apocalyptic number.

12103564620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103564620 is an abundant number, since it is smaller than the sum of its proper divisors (28311848628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103564620 is a wasteful number, since it uses less digits than its factorization.

12103564620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252999 (or 1252997 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 12103564620 in words is "twelve billion, one hundred three million, five hundred sixty-four thousand, six hundred twenty".