1312223033113 has 4 divisors (see below), whose sum is σ = 1314648584548. Its totient is φ = 1309797481680.

The previous prime is 1312223033101. The next prime is 1312223033117. The reversal of 1312223033113 is 3113303222131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188904975424 + 1123318057689 = 434632^2 + 1059867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312223033113 - 2⁵ = 1312223033081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312223033117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212774906 + ... + 1212775987.

It is an arithmetic number, because the mean of its divisors is an integer number (328662146137).

Almost surely, 2^{1312223033113} is an apocalyptic number.

It is an amenable number.

1312223033113 is a deficient number, since it is larger than the sum of its proper divisors (2425551435).

1312223033113 is an equidigital number, since it uses as much as digits as its factorization.

1312223033113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425551434.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312223033113 its reverse (3113303222131), we get a palindrome (4425526255244).

The spelling of 1312223033113 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, thirty-three thousand, one hundred thirteen".