1313223223031 has 4 divisors (see below), whose sum is σ = 1313237322864. Its totient is φ = 1313209123200.

The previous prime is 1313223223019. The next prime is 1313223223153. The reversal of 1313223223031 is 1303223223131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313223223031 - 2⁶ = 1313223222967 is a prime.

It is a super-2 number, since 2×1313223223031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313223226031) 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, 6909275 + ... + 7096796.

It is an arithmetic number, because the mean of its divisors is an integer number (328309330716).

Almost surely, 2^{1313223223031} is an apocalyptic number.

1313223223031 is a deficient number, since it is larger than the sum of its proper divisors (14099833).

1313223223031 is an equidigital number, since it uses as much as digits as its factorization.

1313223223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14099832.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1313223223031 its reverse (1303223223131), we get a palindrome (2616446446162).

The spelling of 1313223223031 in words is "one trillion, three hundred thirteen billion, two hundred twenty-three million, two hundred twenty-three thousand, thirty-one".