311400221142100 has 72 divisors (see below), whose sum is σ = 680812836752160. Its totient is φ = 123627384247680.

The previous prime is 311400221142097. The next prime is 311400221142107. The reversal of 311400221142100 is 1241122004113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311400221142107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7269907 + ... + 25993306.

It is an arithmetic number, because the mean of its divisors is an integer number (9455733843780).

Almost surely, 2^{311400221142100} is an apocalyptic number.

It is an amenable number.

311400221142100 is an abundant number, since it is smaller than the sum of its proper divisors (369412615610060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311400221142100 is a wasteful number, since it uses less digits than its factorization.

311400221142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33263929 (or 33263922 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 311400221142100 its reverse (1241122004113), we get a palindrome (312641343146213).

The spelling of 311400221142100 in words is "three hundred eleven trillion, four hundred billion, two hundred twenty-one million, one hundred forty-two thousand, one hundred".