11321310311031 has 32 divisors (see below), whose sum is σ = 17260062945280. Its totient is φ = 6466117641984.

The previous prime is 11321310310963. The next prime is 11321310311053. The reversal of 11321310311031 is 13011301312311.

It is not a de Polignac number, because 11321310311031 - 2³⁵ = 11286950572663 is a prime.

It is a super-2 number, since 2×11321310311031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321310310989 and 11321310311007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321310310031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398721771 + ... + 398750163.

It is an arithmetic number, because the mean of its divisors is an integer number (539376967040).

Almost surely, 2^{11321310311031} is an apocalyptic number.

11321310311031 is a deficient number, since it is larger than the sum of its proper divisors (5938752634249).

11321310311031 is a wasteful number, since it uses less digits than its factorization.

11321310311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37135.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 11321310311031 its reverse (13011301312311), we get a palindrome (24332611623342).

The spelling of 11321310311031 in words is "eleven trillion, three hundred twenty-one billion, three hundred ten million, three hundred eleven thousand, thirty-one".