1223032131313 has 4 divisors (see below), whose sum is σ = 1223054372160. Its totient is φ = 1223009890468.

The previous prime is 1223032131283. The next prime is 1223032131329. The reversal of 1223032131313 is 3131312303221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223032131313 - 2³⁷ = 1085593177841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223032131383) 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, 11037733 + ... + 11147986.

It is an arithmetic number, because the mean of its divisors is an integer number (305763593040).

Almost surely, 2^{1223032131313} is an apocalyptic number.

It is an amenable number.

1223032131313 is a deficient number, since it is larger than the sum of its proper divisors (22240847).

1223032131313 is an equidigital number, since it uses as much as digits as its factorization.

1223032131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22240846.

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

Adding to 1223032131313 its reverse (3131312303221), we get a palindrome (4354344434534).

The spelling of 1223032131313 in words is "one trillion, two hundred twenty-three billion, thirty-two million, one hundred thirty-one thousand, three hundred thirteen".