31123311322 has 8 divisors (see below), whose sum is σ = 46685741472. Its totient is φ = 15561397500.

The previous prime is 31123311319. The next prime is 31123311341. The reversal of 31123311322 is 22311332113.

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

It is a super-2 number, since 2×31123311322² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31123311293 and 31123311302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110697 + ... + 272947.

It is an arithmetic number, because the mean of its divisors is an integer number (5835717684).

Almost surely, 2^31123311322 is an apocalyptic number.

31123311322 is a deficient number, since it is larger than the sum of its proper divisors (15562430150).

31123311322 is a wasteful number, since it uses less digits than its factorization.

31123311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258164.

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

Adding to 31123311322 its reverse (22311332113), we get a palindrome (53434643435).

The spelling of 31123311322 in words is "thirty-one billion, one hundred twenty-three million, three hundred eleven thousand, three hundred twenty-two".