103247624921 has 4 divisors (see below), whose sum is σ = 117997285632. Its totient is φ = 88497964212.

The previous prime is 103247624881. The next prime is 103247624947. The reversal of 103247624921 is 129426742301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-103247624921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103247654921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7374830345 + ... + 7374830358.

It is an arithmetic number, because the mean of its divisors is an integer number (29499321408).

Almost surely, 2^103247624921 is an apocalyptic number.

It is an amenable number.

103247624921 is a deficient number, since it is larger than the sum of its proper divisors (14749660711).

103247624921 is an equidigital number, since it uses as much as digits as its factorization.

103247624921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14749660710.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 103247624921 in words is "one hundred three billion, two hundred forty-seven million, six hundred twenty-four thousand, nine hundred twenty-one".