11219120031 has 8 divisors (see below), whose sum is σ = 17095801984. Its totient is φ = 6410925720.

The previous prime is 11219119999. The next prime is 11219120041. The reversal of 11219120031 is 13002191211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11219120031 - 2⁵ = 11219119999 is a prime.

It is a super-2 number, since 2×11219120031² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 534243811 = 11219120031 / (1 + 1 + 2 + 1 + 9 + 1 + 2 + 0 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11219120041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267121885 + ... + 267121926.

It is an arithmetic number, because the mean of its divisors is an integer number (2136975248).

Almost surely, 2^11219120031 is an apocalyptic number.

11219120031 is a deficient number, since it is larger than the sum of its proper divisors (5876681953).

11219120031 is an equidigital number, since it uses as much as digits as its factorization.

11219120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534243821.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 11219120031 in words is "eleven billion, two hundred nineteen million, one hundred twenty thousand, thirty-one".