311211000122 has 16 divisors (see below), whose sum is σ = 514504412352. Its totient is φ = 140001198720.

The previous prime is 311211000103. The next prime is 311211000187. The reversal of 311211000122 is 221000112113.

It is a junction number, because it is equal to n+sod(n) for n = 311211000097 and 311211000106.

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, 72915158 + ... + 72919425.

It is an arithmetic number, because the mean of its divisors is an integer number (32156525772).

Almost surely, 2^311211000122 is an apocalyptic number.

311211000122 is a deficient number, since it is larger than the sum of its proper divisors (203293412230).

311211000122 is a wasteful number, since it uses less digits than its factorization.

311211000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145834693.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311211000122 its reverse (221000112113), we get a palindrome (532211112235).

The spelling of 311211000122 in words is "three hundred eleven billion, two hundred eleven million, one hundred twenty-two", and thus it is an aban number.