11123022031 has 16 divisors (see below), whose sum is σ = 12263187456. Its totient is φ = 10004500000.

The previous prime is 11123022011. The next prime is 11123022041. The reversal of 11123022031 is 13022032111.

It is not a de Polignac number, because 11123022031 - 2⁹ = 11123021519 is a prime.

It is a super-2 number, since 2×11123022031² (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 = 11123021996 and 11123022014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123022011) 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, 2076006 + ... + 2081356.

It is an arithmetic number, because the mean of its divisors is an integer number (766449216).

Almost surely, 2^11123022031 is an apocalyptic number.

11123022031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11123022031 is a deficient number, since it is larger than the sum of its proper divisors (1140165425).

11123022031 is a wasteful number, since it uses less digits than its factorization.

11123022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11123022031 its reverse (13022032111), we get a palindrome (24145054142).

The spelling of 11123022031 in words is "eleven billion, one hundred twenty-three million, twenty-two thousand, thirty-one".