103040623621 has 4 divisors (see below), whose sum is σ = 110966825452. Its totient is φ = 95114421792.

The previous prime is 103040623613. The next prime is 103040623627. The reversal of 103040623621 is 126326040301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126326040301 = 22193 ⋅5692157.

It can be written as a sum of positive squares in 2 ways, for example, as 51336230625 + 51704392996 = 226575^2 + 227386^2 .

It is not a de Polignac number, because 103040623621 - 2³ = 103040623613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103040623621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103040623627) 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, 3963100896 + ... + 3963100921.

It is an arithmetic number, because the mean of its divisors is an integer number (27741706363).

Almost surely, 2^103040623621 is an apocalyptic number.

It is an amenable number.

103040623621 is a deficient number, since it is larger than the sum of its proper divisors (7926201831).

103040623621 is an equidigital number, since it uses as much as digits as its factorization.

103040623621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926201830.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 103040623621 its reverse (126326040301), we get a palindrome (229366663922).

The spelling of 103040623621 in words is "one hundred three billion, forty million, six hundred twenty-three thousand, six hundred twenty-one".