31311211311022 has 8 divisors (see below), whose sum is σ = 47229201419400. Its totient is φ = 15568144171224.

The previous prime is 31311211311013. The next prime is 31311211311049. The reversal of 31311211311022 is 22011311211313.

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

It is a junction number, because it is equal to n+sod(n) for n = 31311211310984 and 31311211311002.

It is a congruent number.

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, 43730741697 + ... + 43730742412.

It is an arithmetic number, because the mean of its divisors is an integer number (5903650177425).

Almost surely, 2^{31311211311022} is an apocalyptic number.

31311211311022 is a deficient number, since it is larger than the sum of its proper divisors (15917990108378).

31311211311022 is a wasteful number, since it uses less digits than its factorization.

31311211311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87461484290.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 31311211311022 its reverse (22011311211313), we get a palindrome (53322522522335).

The spelling of 31311211311022 in words is "thirty-one trillion, three hundred eleven billion, two hundred eleven million, three hundred eleven thousand, twenty-two".