11111011901 has 8 divisors (see below), whose sum is σ = 12232308000. Its totient is φ = 10008249840.

The previous prime is 11111011897. The next prime is 11111011927. The reversal of 11111011901 is 10911011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111011901 - 2² = 11111011897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111011901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111011991) 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, 4632251 + ... + 4634648.

It is an arithmetic number, because the mean of its divisors is an integer number (1529038500).

Almost surely, 2^11111011901 is an apocalyptic number.

11111011901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11111011901 is a deficient number, since it is larger than the sum of its proper divisors (1121296099).

11111011901 is a wasteful number, since it uses less digits than its factorization.

11111011901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267019.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 11111011901 in words is "eleven billion, one hundred eleven million, eleven thousand, nine hundred one".