11030123031 has 16 divisors (see below), whose sum is σ = 15121171968. Its totient is φ = 7147569600.

The previous prime is 11030123023. The next prime is 11030123057. The reversal of 11030123031 is 13032103011.

It is not a de Polignac number, because 11030123031 - 2³ = 11030123023 is a prime.

It is a super-2 number, since 2×11030123031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11030123031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030123011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132121 + ... + 198786.

It is an arithmetic number, because the mean of its divisors is an integer number (945073248).

Almost surely, 2^11030123031 is an apocalyptic number.

11030123031 is a deficient number, since it is larger than the sum of its proper divisors (4091048937).

11030123031 is a wasteful number, since it uses less digits than its factorization.

11030123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331222.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11030123031 its reverse (13032103011), we get a palindrome (24062226042).

The spelling of 11030123031 in words is "eleven billion, thirty million, one hundred twenty-three thousand, thirty-one".