311331113002022 has 64 divisors (see below), whose sum is σ = 521699802624000. Its totient is φ = 138654638974368.

The previous prime is 311331113001989. The next prime is 311331113002037. The reversal of 311331113002022 is 220200311133113.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474233879 + ... + 474889917.

It is an arithmetic number, because the mean of its divisors is an integer number (8151559416000).

Almost surely, 2^{311331113002022} is an apocalyptic number.

311331113002022 is a deficient number, since it is larger than the sum of its proper divisors (210368689621978).

311331113002022 is a wasteful number, since it uses less digits than its factorization.

311331113002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665345.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 311331113002022 its reverse (220200311133113), we get a palindrome (531531424135135).

The spelling of 311331113002022 in words is "three hundred eleven trillion, three hundred thirty-one billion, one hundred thirteen million, two thousand, twenty-two".