13213630641 has 4 divisors (see below), whose sum is σ = 17618174192. Its totient is φ = 8809087092.

The previous prime is 13213630637. The next prime is 13213630687. The reversal of 13213630641 is 14603631231.

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 not a de Polignac number, because 13213630641 - 2² = 13213630637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213630599 and 13213630608.

It is not an unprimeable number, because it can be changed into a prime (13213630601) 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, 2202271771 + ... + 2202271776.

It is an arithmetic number, because the mean of its divisors is an integer number (4404543548).

Almost surely, 2^13213630641 is an apocalyptic number.

It is an amenable number.

13213630641 is a deficient number, since it is larger than the sum of its proper divisors (4404543551).

13213630641 is an equidigital number, since it uses as much as digits as its factorization.

13213630641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404543550.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 13213630641 in words is "thirteen billion, two hundred thirteen million, six hundred thirty thousand, six hundred forty-one".