1312220320033 has 16 divisors (see below), whose sum is σ = 1552734146560. Its totient is φ = 1085189173200.

The previous prime is 1312220320031. The next prime is 1312220320051. The reversal of 1312220320033 is 3300230222131.

It is a cyclic number.

It is not a de Polignac number, because 1312220320033 - 2¹ = 1312220320031 is a prime.

It is a super-2 number, since 2×1312220320033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312220319986 and 1312220320013.

It is not an unprimeable number, because it can be changed into a prime (1312220320031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9062763 + ... + 9206416.

It is an arithmetic number, because the mean of its divisors is an integer number (97045884160).

Almost surely, 2^{1312220320033} is an apocalyptic number.

It is an amenable number.

1312220320033 is a deficient number, since it is larger than the sum of its proper divisors (240513826527).

1312220320033 is a wasteful number, since it uses less digits than its factorization.

1312220320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18269548.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1312220320033 its reverse (3300230222131), we get a palindrome (4612450542164).

The spelling of 1312220320033 in words is "one trillion, three hundred twelve billion, two hundred twenty million, three hundred twenty thousand, thirty-three".