2311313100 has 72 divisors (see below), whose sum is σ = 6692227920. Its totient is φ = 615905280.

The previous prime is 2311313071. The next prime is 2311313107. The reversal of 2311313100 is 13131132.

2311313100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2311313100² = 10684336492463220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2311313100.

It is not an unprimeable number, because it can be changed into a prime (2311313107) 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, 781224 + ... + 784176.

It is an arithmetic number, because the mean of its divisors is an integer number (92947610).

Almost surely, 2^2311313100 is an apocalyptic number.

2311313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311313100 is an abundant number, since it is smaller than the sum of its proper divisors (4380914820).

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

2311313100 is a wasteful number, since it uses less digits than its factorization.

2311313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2311313100 is about 48076.1177717170. The cubic root of 2311313100 is about 1322.1668382465.

Adding to 2311313100 its reverse (13131132), we get a palindrome (2324444232).

The spelling of 2311313100 in words is "two billion, three hundred eleven million, three hundred thirteen thousand, one hundred".