11903880633 has 4 divisors (see below), whose sum is σ = 15871840848. Its totient is φ = 7935920420.

The previous prime is 11903880629. The next prime is 11903880649. The reversal of 11903880633 is 33608830911.

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 cyclic number.

It is not a de Polignac number, because 11903880633 - 2² = 11903880629 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11903884633) 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, 1983980103 + ... + 1983980108.

It is an arithmetic number, because the mean of its divisors is an integer number (3967960212).

Almost surely, 2^11903880633 is an apocalyptic number.

It is an amenable number.

11903880633 is a deficient number, since it is larger than the sum of its proper divisors (3967960215).

11903880633 is an equidigital number, since it uses as much as digits as its factorization.

11903880633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967960214.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 11903880633 in words is "eleven billion, nine hundred three million, eight hundred eighty thousand, six hundred thirty-three".