1310311222 has 64 divisors (see below), whose sum is σ = 2258150400. Its totient is φ = 565044480.

The previous prime is 1310311217. The next prime is 1310311243. The reversal of 1310311222 is 2221130131.

It is a junction number, because it is equal to n+sod(n) for n = 1310311196 and 1310311205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6651228 + ... + 6651424.

It is an arithmetic number, because the mean of its divisors is an integer number (35283600).

Almost surely, 2^1310311222 is an apocalyptic number.

1310311222 is a deficient number, since it is larger than the sum of its proper divisors (947839178).

1310311222 is a wasteful number, since it uses less digits than its factorization.

1310311222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

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

The square root of 1310311222 is about 36198.2212546418. The cubic root of 1310311222 is about 1094.2708244235.

Adding to 1310311222 its reverse (2221130131), we get a palindrome (3531441353).

The spelling of 1310311222 in words is "one billion, three hundred ten million, three hundred eleven thousand, two hundred twenty-two".