1313203112031 has 8 divisors (see below), whose sum is σ = 1767936876160. Its totient is φ = 866969044632.

The previous prime is 1313203112027. The next prime is 1313203112033. The reversal of 1313203112031 is 1302113023131.

It is a happy number.

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

It is not a de Polignac number, because 1313203112031 - 2² = 1313203112027 is a prime.

It is a super-2 number, since 2×1313203112031² (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 = 1313203111989 and 1313203112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313203112033) 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, 2124923821 + ... + 2124924438.

It is an arithmetic number, because the mean of its divisors is an integer number (220992109520).

Almost surely, 2^{1313203112031} is an apocalyptic number.

1313203112031 is a deficient number, since it is larger than the sum of its proper divisors (454733764129).

1313203112031 is a wasteful number, since it uses less digits than its factorization.

1313203112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249848365.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1313203112031 its reverse (1302113023131), we get a palindrome (2615316135162).

The spelling of 1313203112031 in words is "one trillion, three hundred thirteen billion, two hundred three million, one hundred twelve thousand, thirty-one".