11231013 has 4 divisors (see below), whose sum is σ = 14974688. Its totient is φ = 7487340.

The previous prime is 11230939. The next prime is 11231027. The reversal of 11231013 is 31013211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31013211 = 3 ⋅10337737.

It is not a de Polignac number, because 11231013 - 2¹⁴ = 11214629 is a prime.

It is a super-2 number, since 2×11231013² = 252271306012338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231093) 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, 1871833 + ... + 1871838.

It is an arithmetic number, because the mean of its divisors is an integer number (3743672).

Almost surely, 2^11231013 is an apocalyptic number.

It is an amenable number.

11231013 is a deficient number, since it is larger than the sum of its proper divisors (3743675).

11231013 is an equidigital number, since it uses as much as digits as its factorization.

11231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743674.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11231013 is about 3351.2703561485. The cubic root of 11231013 is about 223.9441094083.

Adding to 11231013 its reverse (31013211), we get a palindrome (42244224).

It can be divided in two parts, 112 and 31013, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 11231013 in words is "eleven million, two hundred thirty-one thousand, thirteen".