11138023 has 8 divisors (see below), whose sum is σ = 12031488. Its totient is φ = 10249824.

The previous prime is 11137993. The next prime is 11138033. The reversal of 11138023 is 32083111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11138023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (1503936).

Almost surely, 2^11138023 is an apocalyptic number.

11138023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11138023 is a deficient number, since it is larger than the sum of its proper divisors (893465).

11138023 is a wasteful number, since it uses less digits than its factorization.

11138023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11138023 is about 3337.3676752794. The cubic root of 11138023 is about 223.3243284902.

The spelling of 11138023 in words is "eleven million, one hundred thirty-eight thousand, twenty-three".