11331123221031 has 8 divisors (see below), whose sum is σ = 15108254793840. Its totient is φ = 7554036897792.

The previous prime is 11331123221023. The next prime is 11331123221039. The reversal of 11331123221031 is 13012232113311.

It is an interprime number because it is at equal distance from previous prime (11331123221023) and next prime (11331123221039).

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

It is not a de Polignac number, because 11331123221031 - 2³ = 11331123221023 is a prime.

It is a super-2 number, since 2×11331123221031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331123220992 and 11331123221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331123221039) 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, 10723716 + ... + 11732873.

It is an arithmetic number, because the mean of its divisors is an integer number (1888531849230).

Almost surely, 2^{11331123221031} is an apocalyptic number.

11331123221031 is a deficient number, since it is larger than the sum of its proper divisors (3777131572809).

11331123221031 is a wasteful number, since it uses less digits than its factorization.

11331123221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22624785.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11331123221031 its reverse (13012232113311), we get a palindrome (24343355334342).

The spelling of 11331123221031 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-three million, two hundred twenty-one thousand, thirty-one".