11156026023 has 16 divisors (see below), whose sum is σ = 16713151200. Its totient is φ = 7353783360.

The previous prime is 11156026019. The next prime is 11156026031. The reversal of 11156026023 is 32062065111.

11156026023 is a `hidden beast` number, since 1 + 1 + 1 + 56 + 0 + 2 + 602 + 3 = 666.

It is not a de Polignac number, because 11156026023 - 2² = 11156026019 is a prime.

It is a super-3 number, since 3×11156026023³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156026223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318868 + ... + 2323673.

It is an arithmetic number, because the mean of its divisors is an integer number (1044571950).

Almost surely, 2^11156026023 is an apocalyptic number.

11156026023 is a deficient number, since it is larger than the sum of its proper divisors (5557125177).

11156026023 is an equidigital number, since it uses as much as digits as its factorization.

11156026023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642639 (or 4642633 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 11156026023 in words is "eleven billion, one hundred fifty-six million, twenty-six thousand, twenty-three".