1120203131313 has 32 divisors (see below), whose sum is σ = 1756114843392. Its totient is φ = 621823104000.

The previous prime is 1120203131303. The next prime is 1120203131381. The reversal of 1120203131313 is 3131313020211.

It is a happy number.

It is not a de Polignac number, because 1120203131313 - 2³³ = 1111613196721 is a prime.

It is a super-2 number, since 2×1120203131313² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1120203131313.

It is not an unprimeable number, because it can be changed into a prime (1120203131303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2591338 + ... + 2992563.

It is an arithmetic number, because the mean of its divisors is an integer number (54878588856).

Almost surely, 2^{1120203131313} is an apocalyptic number.

It is an amenable number.

1120203131313 is a deficient number, since it is larger than the sum of its proper divisors (635911712079).

1120203131313 is a wasteful number, since it uses less digits than its factorization.

1120203131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584185.

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

Adding to 1120203131313 its reverse (3131313020211), we get a palindrome (4251516151524).

The spelling of 1120203131313 in words is "one trillion, one hundred twenty billion, two hundred three million, one hundred thirty-one thousand, three hundred thirteen".