11120023031 has 32 divisors (see below), whose sum is σ = 12626147520. Its totient is φ = 9725101056.

The previous prime is 11120023009. The next prime is 11120023063. The reversal of 11120023031 is 13032002111.

It is a cyclic number.

It is not a de Polignac number, because 11120023031 - 2⁶ = 11120022967 is a prime.

It is a super-2 number, since 2×11120023031² (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 = 11120022997 and 11120023015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120023081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2866265 + ... + 2870141.

It is an arithmetic number, because the mean of its divisors is an integer number (394567110).

Almost surely, 2^11120023031 is an apocalyptic number.

11120023031 is a deficient number, since it is larger than the sum of its proper divisors (1506124489).

11120023031 is a wasteful number, since it uses less digits than its factorization.

11120023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11120023031 its reverse (13032002111), we get a palindrome (24152025142).

The spelling of 11120023031 in words is "eleven billion, one hundred twenty million, twenty-three thousand, thirty-one".