31323301031 has 8 divisors (see below), whose sum is σ = 34183373328. Its totient is φ = 28465312000.

The previous prime is 31323301021. The next prime is 31323301049. The reversal of 31323301031 is 13010332313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31323301031 is a prime.

It is a super-2 number, since 2×31323301031² (a number of 22 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 = 31323300994 and 31323301012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323301021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489290 + ... + 549591.

It is an arithmetic number, because the mean of its divisors is an integer number (4272921666).

Almost surely, 2^31323301031 is an apocalyptic number.

31323301031 is a deficient number, since it is larger than the sum of its proper divisors (2860072297).

31323301031 is a wasteful number, since it uses less digits than its factorization.

31323301031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041633.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31323301031 its reverse (13010332313), we get a palindrome (44333633344).

The spelling of 31323301031 in words is "thirty-one billion, three hundred twenty-three million, three hundred one thousand, thirty-one".