31211132323 has 8 divisors (see below), whose sum is σ = 36172258560. Its totient is φ = 26375604360.

The previous prime is 31211132311. The next prime is 31211132377. The reversal of 31211132323 is 32323111213.

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

It is not a de Polignac number, because 31211132323 - 2⁵ = 31211132291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31211132294 and 31211132303.

It is not an unprimeable number, because it can be changed into a prime (31211132383) 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, 31399033 + ... + 31400026.

It is an arithmetic number, because the mean of its divisors is an integer number (4521532320).

Almost surely, 2^31211132323 is an apocalyptic number.

31211132323 is a deficient number, since it is larger than the sum of its proper divisors (4961126237).

31211132323 is an equidigital number, since it uses as much as digits as its factorization.

31211132323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62799137.

The product of its digits is 648, while the sum is 22.

Adding to 31211132323 its reverse (32323111213), we get a palindrome (63534243536).

The spelling of 31211132323 in words is "thirty-one billion, two hundred eleven million, one hundred thirty-two thousand, three hundred twenty-three".