11112043031 has 4 divisors (see below), whose sum is σ = 11470496064. Its totient is φ = 10753590000.

The previous prime is 11112042959. The next prime is 11112043073. The reversal of 11112043031 is 13034021111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13034021111 = 79 ⋅164987609.

It is not a de Polignac number, because 11112043031 - 2²² = 11107848727 is a prime.

It is a super-2 number, since 2×11112043031² (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 (11112043091) 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, 179226470 + ... + 179226531.

It is an arithmetic number, because the mean of its divisors is an integer number (2867624016).

Almost surely, 2^11112043031 is an apocalyptic number.

11112043031 is a deficient number, since it is larger than the sum of its proper divisors (358453033).

11112043031 is an equidigital number, since it uses as much as digits as its factorization.

11112043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358453032.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11112043031 its reverse (13034021111), we get a palindrome (24146064142).

The spelling of 11112043031 in words is "eleven billion, one hundred twelve million, forty-three thousand, thirty-one".