20111091004 has 12 divisors (see below), whose sum is σ = 35196865200. Its totient is φ = 10054843808.

The previous prime is 20111090959. The next prime is 20111091019. The reversal of 20111091004 is 40019011102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108064 + ... + 227815.

It is an arithmetic number, because the mean of its divisors is an integer number (2933072100).

Almost surely, 2^20111091004 is an apocalyptic number.

It is an amenable number.

20111091004 is a deficient number, since it is larger than the sum of its proper divisors (15085774196).

20111091004 is a wasteful number, since it uses less digits than its factorization.

20111091004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350852 (or 350850 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 20111091004 in words is "twenty billion, one hundred eleven million, ninety-one thousand, four".