1310231120 has 80 divisors (see below), whose sum is σ = 3430494720. Its totient is φ = 461068800.

The previous prime is 1310231099. The next prime is 1310231141. The reversal of 1310231120 is 211320131.

It is an interprime number because it is at equal distance from previous prime (1310231099) and next prime (1310231141).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1310231095 and 1310231104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3266 + ... + 51294.

It is an arithmetic number, because the mean of its divisors is an integer number (42881184).

Almost surely, 2^1310231120 is an apocalyptic number.

1310231120 is a gapful number since it is divisible by the number (10) 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 1310231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715247360).

1310231120 is an abundant number, since it is smaller than the sum of its proper divisors (2120263600).

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

1310231120 is a wasteful number, since it uses less digits than its factorization.

1310231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48084 (or 48078 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1310231120 is about 36197.1148021496. The cubic root of 1310231120 is about 1094.2485256326.

Adding to 1310231120 its reverse (211320131), we get a palindrome (1521551251).

The spelling of 1310231120 in words is "one billion, three hundred ten million, two hundred thirty-one thousand, one hundred twenty".