11887803413 has 4 divisors (see below), whose sum is σ = 11890438560. Its totient is φ = 11885168268.

The previous prime is 11887803409. The next prime is 11887803419. The reversal of 11887803413 is 31430878811.

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 11887803413 - 2² = 11887803409 is a prime.

It is a super-2 number, since 2×11887803413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887803419) 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, 1310795 + ... + 1319832.

It is an arithmetic number, because the mean of its divisors is an integer number (2972609640).

Almost surely, 2^11887803413 is an apocalyptic number.

It is an amenable number.

11887803413 is a deficient number, since it is larger than the sum of its proper divisors (2635147).

11887803413 is an equidigital number, since it uses as much as digits as its factorization.

11887803413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635146.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 11887803413 in words is "eleven billion, eight hundred eighty-seven million, eight hundred three thousand, four hundred thirteen".