1310100221320 has 64 divisors (see below), whose sum is σ = 3247539272640. Its totient is φ = 471683232000.

The previous prime is 1310100221281. The next prime is 1310100221359. The reversal of 1310100221320 is 231220010131.

It is an interprime number because it is at equal distance from previous prime (1310100221281) and next prime (1310100221359).

It is a junction number, because it is equal to n+sod(n) for n = 1310100221294 and 1310100221303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14695662 + ... + 14784541.

It is an arithmetic number, because the mean of its divisors is an integer number (50742801135).

Almost surely, 2^{1310100221320} is an apocalyptic number.

1310100221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310100221320 is an abundant number, since it is smaller than the sum of its proper divisors (1937439051320).

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

1310100221320 is a wasteful number, since it uses less digits than its factorization.

1310100221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29480326 (or 29480322 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1310100221320 its reverse (231220010131), we get a palindrome (1541320231451).

The spelling of 1310100221320 in words is "one trillion, three hundred ten billion, one hundred million, two hundred twenty-one thousand, three hundred twenty".