1133131221331 has 4 divisors (see below), whose sum is σ = 1133141474664. Its totient is φ = 1133120968000.

The previous prime is 1133131221329. The next prime is 1133131221337. The reversal of 1133131221331 is 1331221313311.

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 1133131221331 - 2¹ = 1133131221329 is a prime.

It is a super-2 number, since 2×1133131221331² (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 = 1133131221296 and 1133131221305.

It is not an unprimeable number, because it can be changed into a prime (1133131221337) 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, 4959070 + ... + 5182531.

It is an arithmetic number, because the mean of its divisors is an integer number (283285368666).

Almost surely, 2^{1133131221331} is an apocalyptic number.

1133131221331 is a deficient number, since it is larger than the sum of its proper divisors (10253333).

1133131221331 is a wasteful number, since it uses less digits than its factorization.

1133131221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253332.

The product of its digits is 972, while the sum is 25.

Adding to 1133131221331 its reverse (1331221313311), we get a palindrome (2464352534642).

The spelling of 1133131221331 in words is "one trillion, one hundred thirty-three billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred thirty-one".