31123232323 has 2 divisors, whose sum is σ = 31123232324. Its totient is φ = 31123232322.

The previous prime is 31123232297. The next prime is 31123232333. The reversal of 31123232323 is 32323232113.

It is a strong prime.

It is an emirp because it is prime and its reverse (32323232113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31123232323 - 2²⁹ = 30586361411 is a prime.

It is not a weakly prime, because it can be changed into another prime (31123232333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561616161 + 15561616162.

It is an arithmetic number, because the mean of its divisors is an integer number (15561616162).

Almost surely, 2^31123232323 is an apocalyptic number.

31123232323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31123232323 is an equidigital number, since it uses as much as digits as its factorization.

31123232323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 25.

Adding to 31123232323 its reverse (32323232113), we get a palindrome (63446464436).

The spelling of 31123232323 in words is "thirty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty-three".