2311314403220 has 48 divisors (see below), whose sum is σ = 4920648617808. Its totient is φ = 911787171840.

The previous prime is 2311314403217. The next prime is 2311314403249. The reversal of 2311314403220 is 223044131132.

It can be written as a sum of positive squares in 8 ways, for example, as 437711913604 + 1873602489616 = 661598^2 + 1368796^2 .

It is a super-3 number, since 3×2311314403220³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2311314403220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20150672 + ... + 20265048.

It is an arithmetic number, because the mean of its divisors is an integer number (102513512871).

Almost surely, 2^{2311314403220} is an apocalyptic number.

2311314403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311314403220 is an abundant number, since it is smaller than the sum of its proper divisors (2609334214588).

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

2311314403220 is a wasteful number, since it uses less digits than its factorization.

2311314403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128300 (or 128298 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2311314403220 its reverse (223044131132), we get a palindrome (2534358534352).

The spelling of 2311314403220 in words is "two trillion, three hundred eleven billion, three hundred fourteen million, four hundred three thousand, two hundred twenty".