11900111110002 has 16 divisors (see below), whose sum is σ = 26444691355680. Its totient is φ = 3966703703316.

The previous prime is 11900111109911. The next prime is 11900111110003. The reversal of 11900111110002 is 20001111100911.

It is a super-2 number, since 2×11900111110002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11900111110003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110186213928 + ... + 110186214035.

It is an arithmetic number, because the mean of its divisors is an integer number (1652793209730).

Almost surely, 2^{11900111110002} is an apocalyptic number.

11900111110002 is an abundant number, since it is smaller than the sum of its proper divisors (14544580245678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11900111110002 is a wasteful number, since it uses less digits than its factorization.

11900111110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220372427974 (or 220372427968 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

Adding to 11900111110002 its reverse (20001111100911), we get a palindrome (31901222210913).

The spelling of 11900111110002 in words is "eleven trillion, nine hundred billion, one hundred eleven million, one hundred ten thousand, two".