1213523322313 has 8 divisors (see below), whose sum is σ = 1252876584960. Its totient is φ = 1174183019040.

The previous prime is 1213523322311. The next prime is 1213523322343. The reversal of 1213523322313 is 3132233253121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213523322313 - 2¹ = 1213523322311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213523322311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049348 + ... + 3424261.

It is an arithmetic number, because the mean of its divisors is an integer number (156609573120).

Almost surely, 2^{1213523322313} is an apocalyptic number.

It is an amenable number.

1213523322313 is a deficient number, since it is larger than the sum of its proper divisors (39353262647).

1213523322313 is an equidigital number, since it uses as much as digits as its factorization.

1213523322313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479687.

The product of its digits is 19440, while the sum is 31.

Adding to 1213523322313 its reverse (3132233253121), we get a palindrome (4345756575434).

The spelling of 1213523322313 in words is "one trillion, two hundred thirteen billion, five hundred twenty-three million, three hundred twenty-two thousand, three hundred thirteen".