31323311123 has 8 divisors (see below), whose sum is σ = 33735269568. Its totient is φ = 28911705984.

The previous prime is 31323311113. The next prime is 31323311141. The reversal of 31323311123 is 32111332313.

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

It is a cyclic number.

It is not a de Polignac number, because 31323311123 - 2⁸ = 31323310867 is a prime.

It is a super-2 number, since 2×31323311123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31323311113) 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, 112790 + ... + 274532.

It is an arithmetic number, because the mean of its divisors is an integer number (4216908696).

Almost surely, 2^31323311123 is an apocalyptic number.

31323311123 is a deficient number, since it is larger than the sum of its proper divisors (2411958445).

31323311123 is a wasteful number, since it uses less digits than its factorization.

31323311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176653.

The product of its digits is 972, while the sum is 23.

Adding to 31323311123 its reverse (32111332313), we get a palindrome (63434643436).

The spelling of 31323311123 in words is "thirty-one billion, three hundred twenty-three million, three hundred eleven thousand, one hundred twenty-three".