311143422002 has 16 divisors (see below), whose sum is σ = 533801913792. Its totient is φ = 133243883280.

The previous prime is 311143421999. The next prime is 311143422047. The reversal of 311143422002 is 200224341113.

It is a super-2 number, since 2×311143422002² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8589413 + ... + 8625560.

It is an arithmetic number, because the mean of its divisors is an integer number (33362619612).

Almost surely, 2^311143422002 is an apocalyptic number.

311143422002 is a deficient number, since it is larger than the sum of its proper divisors (222658491790).

311143422002 is a wasteful number, since it uses less digits than its factorization.

311143422002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17216273.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 311143422002 its reverse (200224341113), we get a palindrome (511367763115).

The spelling of 311143422002 in words is "three hundred eleven billion, one hundred forty-three million, four hundred twenty-two thousand, two".