1031031131233 has 8 divisors (see below), whose sum is σ = 1041139545768. Its totient is φ = 1020967544064.

The previous prime is 1031031131227. The next prime is 1031031131257. The reversal of 1031031131233 is 3321311301301.

It can be written as a sum of positive squares in 4 ways, for example, as 279468707904 + 751562423329 = 528648^2 + 866927^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031031131233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031031132233) 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, 11160616 + ... + 11252617.

It is an arithmetic number, because the mean of its divisors is an integer number (130142443221).

Almost surely, 2^{1031031131233} is an apocalyptic number.

It is an amenable number.

1031031131233 is a deficient number, since it is larger than the sum of its proper divisors (10108414535).

1031031131233 is a wasteful number, since it uses less digits than its factorization.

1031031131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22413683.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1031031131233 its reverse (3321311301301), we get a palindrome (4352342432534).

The spelling of 1031031131233 in words is "one trillion, thirty-one billion, thirty-one million, one hundred thirty-one thousand, two hundred thirty-three".