1313221002233 has 12 divisors (see below), whose sum is σ = 1617484692852. Its totient is φ = 1059405177600.

The previous prime is 1313221002229. The next prime is 1313221002239. The reversal of 1313221002233 is 3322001223131.

It can be written as a sum of positive squares in 2 ways, for example, as 996626849344 + 316594152889 = 998312^2 + 562667^2 .

It is not a de Polignac number, because 1313221002233 - 2² = 1313221002229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313221002199 and 1313221002208.

It is not an unprimeable number, because it can be changed into a prime (1313221002239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788247068 + ... + 788248733.

It is an arithmetic number, because the mean of its divisors is an integer number (134790391071).

Almost surely, 2^{1313221002233} is an apocalyptic number.

It is an amenable number.

1313221002233 is a deficient number, since it is larger than the sum of its proper divisors (304263690619).

1313221002233 is a wasteful number, since it uses less digits than its factorization.

1313221002233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576495832 (or 1576495825 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1313221002233 its reverse (3322001223131), we get a palindrome (4635222225364).

The spelling of 1313221002233 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, two thousand, two hundred thirty-three".