11120423231 has 8 divisors (see below), whose sum is σ = 11791185840. Its totient is φ = 10451507328.

The previous prime is 11120423213. The next prime is 11120423233. The reversal of 11120423231 is 13232402111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120423231 is a prime.

It is a super-2 number, since 2×11120423231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120423233) 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, 449261 + ... + 473366.

It is an arithmetic number, because the mean of its divisors is an integer number (1473898230).

Almost surely, 2^11120423231 is an apocalyptic number.

11120423231 is a deficient number, since it is larger than the sum of its proper divisors (670762609).

11120423231 is an equidigital number, since it uses as much as digits as its factorization.

11120423231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923353.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11120423231 its reverse (13232402111), we get a palindrome (24352825342).

The spelling of 11120423231 in words is "eleven billion, one hundred twenty million, four hundred twenty-three thousand, two hundred thirty-one".