31123320011322 has 32 divisors (see below), whose sum is σ = 77606200548864. Its totient is φ = 8083979223600.

The previous prime is 31123320011297. The next prime is 31123320011327. The reversal of 31123320011322 is 22311002332113.

It is a super-2 number, since 2×31123320011322² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31123320011292 and 31123320011301.

It is not an unprimeable number, because it can be changed into a prime (31123320011327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33683246304 + ... + 33683247227.

It is an arithmetic number, because the mean of its divisors is an integer number (2425193767152).

Almost surely, 2^{31123320011322} is an apocalyptic number.

31123320011322 is an abundant number, since it is smaller than the sum of its proper divisors (46482880537542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31123320011322 is a wasteful number, since it uses less digits than its factorization.

31123320011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67366493554.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31123320011322 its reverse (22311002332113), we get a palindrome (53434322343435).

The spelling of 31123320011322 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred twenty million, eleven thousand, three hundred twenty-two".