11091091002 has 16 divisors (see below), whose sum is σ = 22207485792. Its totient is φ = 3692813040.

The previous prime is 11091090991. The next prime is 11091091013. The reversal of 11091091002 is 20019019011.

It is an interprime number because it is at equal distance from previous prime (11091090991) and next prime (11091091013).

It is a super-2 number, since 2×11091091002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048624 + ... + 1059147.

It is an arithmetic number, because the mean of its divisors is an integer number (1387967862).

Almost surely, 2^11091091002 is an apocalyptic number.

11091091002 is an abundant number, since it is smaller than the sum of its proper divisors (11116394790).

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

11091091002 is a wasteful number, since it uses less digits than its factorization.

11091091002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108653.

The product of its (nonzero) digits is 162, while the sum is 24.

It can be divided in two parts, 1109109 and 1002, that added together give a palindrome (1110111).

The spelling of 11091091002 in words is "eleven billion, ninety-one million, ninety-one thousand, two".