11322120031 has 4 divisors (see below), whose sum is σ = 11585425192. Its totient is φ = 11058814872.

The previous prime is 11322120013. The next prime is 11322120041. The reversal of 11322120031 is 13002122311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13002122311 = 7331 ⋅1773581.

It is a cyclic number.

It is not a de Polignac number, because 11322120031 - 2¹⁵ = 11322087263 is a prime.

It is a super-2 number, since 2×11322120031² (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 = 11322119987 and 11322120014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322120041) 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, 131652516 + ... + 131652601.

It is an arithmetic number, because the mean of its divisors is an integer number (2896356298).

Almost surely, 2^11322120031 is an apocalyptic number.

11322120031 is a deficient number, since it is larger than the sum of its proper divisors (263305161).

11322120031 is an equidigital number, since it uses as much as digits as its factorization.

11322120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263305160.

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

Adding to 11322120031 its reverse (13002122311), we get a palindrome (24324242342).

The spelling of 11322120031 in words is "eleven billion, three hundred twenty-two million, one hundred twenty thousand, thirty-one".