1310322220 has 12 divisors (see below), whose sum is σ = 2751676704. Its totient is φ = 524128880.

The previous prime is 1310322217. The next prime is 1310322271. The reversal of 1310322220 is 222230131.

It is a junction number, because it is equal to n+sod(n) for n = 1310322194 and 1310322203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32758036 + ... + 32758075.

It is an arithmetic number, because the mean of its divisors is an integer number (229306392).

Almost surely, 2^1310322220 is an apocalyptic number.

1310322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310322220 is an abundant number, since it is smaller than the sum of its proper divisors (1441354484).

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

1310322220 is a wasteful number, since it uses less digits than its factorization.

1310322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65516120 (or 65516118 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1310322220 is about 36198.3731678649. The cubic root of 1310322220 is about 1094.2738859752.

Adding to 1310322220 its reverse (222230131), we get a palindrome (1532552351).

The spelling of 1310322220 in words is "one billion, three hundred ten million, three hundred twenty-two thousand, two hundred twenty".