11331231330031 has 4 divisors (see below), whose sum is σ = 11366976539592. Its totient is φ = 11295486120472.

The previous prime is 11331231330007. The next prime is 11331231330103. The reversal of 11331231330031 is 13003313213311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331231330031 is a prime.

It is a super-2 number, since 2×11331231330031² (a number of 27 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 = 11331231329978 and 11331231330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331231370031) 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, 17872604305 + ... + 17872604938.

It is an arithmetic number, because the mean of its divisors is an integer number (2841744134898).

Almost surely, 2^{11331231330031} is an apocalyptic number.

11331231330031 is a deficient number, since it is larger than the sum of its proper divisors (35745209561).

11331231330031 is an equidigital number, since it uses as much as digits as its factorization.

11331231330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35745209560.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 11331231330031 its reverse (13003313213311), we get a palindrome (24334544543342).

The spelling of 11331231330031 in words is "eleven trillion, three hundred thirty-one billion, two hundred thirty-one million, three hundred thirty thousand, thirty-one".