311113313100 has 432 divisors, whose sum is σ = 1068044140800. Its totient is φ = 78336357120.

The previous prime is 311113313089. The next prime is 311113313131. The reversal of 311113313100 is 1313311113.

311113313100 is a `hidden beast` number, since 3 + 11 + 11 + 331 + 310 + 0 = 666.

It is a super-2 number, since 2×311113313100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 165749362 + ... + 165751238.

It is an arithmetic number, because the mean of its divisors is an integer number (2472324400).

Almost surely, 2^311113313100 is an apocalyptic number.

311113313100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311113313100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534022070400).

311113313100 is an abundant number, since it is smaller than the sum of its proper divisors (756930827700).

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

311113313100 is a wasteful number, since it uses less digits than its factorization.

311113313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 311113313100 its reverse (1313311113), we get a palindrome (312426624213).

The spelling of 311113313100 in words is "three hundred eleven billion, one hundred thirteen million, three hundred thirteen thousand, one hundred".