1310221031133 has 24 divisors (see below), whose sum is σ = 2032555804320. Its totient is φ = 748559115360.

The previous prime is 1310221031129. The next prime is 1310221031201. The reversal of 1310221031133 is 3311301220131.

It is a happy number.

It is not a de Polignac number, because 1310221031133 - 2² = 1310221031129 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310221031333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25798 + ... + 1618983.

It is an arithmetic number, because the mean of its divisors is an integer number (84689825180).

Almost surely, 2^{1310221031133} is an apocalyptic number.

It is an amenable number.

1310221031133 is a deficient number, since it is larger than the sum of its proper divisors (722334773187).

1310221031133 is a wasteful number, since it uses less digits than its factorization.

1310221031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650217 (or 1650210 counting only the distinct ones).

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

Adding to 1310221031133 its reverse (3311301220131), we get a palindrome (4621522251264).

The spelling of 1310221031133 in words is "one trillion, three hundred ten billion, two hundred twenty-one million, thirty-one thousand, one hundred thirty-three".