3101131320 has 256 divisors, whose sum is σ = 11028925440. Its totient is φ = 682795008.

The previous prime is 3101131307. The next prime is 3101131337. The reversal of 3101131320 is 231311013.

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 3101131320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3511599 + ... + 3512481.

It is an arithmetic number, because the mean of its divisors is an integer number (43081740).

Almost surely, 2^3101131320 is an apocalyptic number.

3101131320 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 3101131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5514462720).

3101131320 is an abundant number, since it is smaller than the sum of its proper divisors (7927794120).

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

3101131320 is a wasteful number, since it uses less digits than its factorization.

3101131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1050 counting only the distinct ones).

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

The square root of 3101131320 is about 55687.8022550720. The cubic root of 3101131320 is about 1458.2770881673.

Adding to 3101131320 its reverse (231311013), we get a palindrome (3332442333).

It can be divided in two parts, 3101 and 131320, that added together give a triangular number (134421 = T₅₁₈).

The spelling of 3101131320 in words is "three billion, one hundred one million, one hundred thirty-one thousand, three hundred twenty".