11157023 has 4 divisors (see below), whose sum is σ = 11185248. Its totient is φ = 11128800.

The previous prime is 11156989. The next prime is 11157053. The reversal of 11157023 is 32075111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11157023 - 2¹⁴ = 11140639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11156986 and 11157004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13511 + ... + 14312.

It is an arithmetic number, because the mean of its divisors is an integer number (2796312).

Almost surely, 2^11157023 is an apocalyptic number.

11157023 is a deficient number, since it is larger than the sum of its proper divisors (28225).

11157023 is an equidigital number, since it uses as much as digits as its factorization.

11157023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28224.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11157023 is about 3340.2130171592. The cubic root of 11157023 is about 223.4512436458.

The spelling of 11157023 in words is "eleven million, one hundred fifty-seven thousand, twenty-three".