11109995012 has 6 divisors (see below), whose sum is σ = 19442491278. Its totient is φ = 5554997504.

The previous prime is 11109994999. The next prime is 11109995021. The reversal of 11109995012 is 21059990111.

It can be written as a sum of positive squares in only one way, i.e., 7421133316 + 3688861696 = 86146^2 + 60736^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388749373 + ... + 1388749380.

It is an arithmetic number, because the mean of its divisors is an integer number (3240415213).

Almost surely, 2^11109995012 is an apocalyptic number.

It is an amenable number.

11109995012 is a deficient number, since it is larger than the sum of its proper divisors (8332496266).

11109995012 is a wasteful number, since it uses less digits than its factorization.

11109995012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777498757 (or 2777498755 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 38.

The spelling of 11109995012 in words is "eleven billion, one hundred nine million, nine hundred ninety-five thousand, twelve".