11101005156 has 48 divisors (see below), whose sum is σ = 26179433280. Its totient is φ = 3660854400.

The previous prime is 11101005137. The next prime is 11101005193. The reversal of 11101005156 is 65150010111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910855 + ... + 922961.

It is an arithmetic number, because the mean of its divisors is an integer number (545404860).

Almost surely, 2^11101005156 is an apocalyptic number.

It is an amenable number.

11101005156 is an abundant number, since it is smaller than the sum of its proper divisors (15078428124).

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

11101005156 is a wasteful number, since it uses less digits than its factorization.

11101005156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12924 (or 12922 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 11101005156 its reverse (65150010111), we get a palindrome (76251015267).

The spelling of 11101005156 in words is "eleven billion, one hundred one million, five thousand, one hundred fifty-six".