10111091091 has 16 divisors (see below), whose sum is σ = 14226426240. Its totient is φ = 6370012800.

The previous prime is 10111091087. The next prime is 10111091101. The reversal of 10111091091 is 19019011101.

It is not a de Polignac number, because 10111091091 - 2² = 10111091087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10111096091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198325 + ... + 244038.

It is an arithmetic number, because the mean of its divisors is an integer number (889151640).

Almost surely, 2^10111091091 is an apocalyptic number.

10111091091 is a deficient number, since it is larger than the sum of its proper divisors (4115335149).

10111091091 is a wasteful number, since it uses less digits than its factorization.

10111091091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442786.

The product of its (nonzero) digits is 81, while the sum is 24.

The spelling of 10111091091 in words is "ten billion, one hundred eleven million, ninety-one thousand, ninety-one".