11120313031 has 4 divisors (see below), whose sum is σ = 11330130312. Its totient is φ = 10910495752.

The previous prime is 11120313023. The next prime is 11120313053. The reversal of 11120313031 is 13031302111.

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 11120313031 - 2³ = 11120313023 is a prime.

It is a super-2 number, since 2×11120313031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120312996 and 11120313014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120313011) 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, 104908561 + ... + 104908666.

It is an arithmetic number, because the mean of its divisors is an integer number (2832532578).

Almost surely, 2^11120313031 is an apocalyptic number.

11120313031 is a deficient number, since it is larger than the sum of its proper divisors (209817281).

11120313031 is an equidigital number, since it uses as much as digits as its factorization.

11120313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209817280.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11120313031 its reverse (13031302111), we get a palindrome (24151615142).

The spelling of 11120313031 in words is "eleven billion, one hundred twenty million, three hundred thirteen thousand, thirty-one".