311312002022 has 8 divisors (see below), whose sum is σ = 533677717776. Its totient is φ = 133419429432.

The previous prime is 311312001991. The next prime is 311312002031. The reversal of 311312002022 is 220200213113.

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

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, 11118285773 + ... + 11118285800.

It is an arithmetic number, because the mean of its divisors is an integer number (66709714722).

Almost surely, 2^311312002022 is an apocalyptic number.

311312002022 is a deficient number, since it is larger than the sum of its proper divisors (222365715754).

311312002022 is a wasteful number, since it uses less digits than its factorization.

311312002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22236571582.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 311312002022 its reverse (220200213113), we get a palindrome (531512215135).

The spelling of 311312002022 in words is "three hundred eleven billion, three hundred twelve million, two thousand, twenty-two".