1131324023421 has 6 divisors (see below), whose sum is σ = 1634134700510. Its totient is φ = 754216015608.

The previous prime is 1131324023399. The next prime is 1131324023471. The reversal of 1131324023421 is 1243204231311.

1131324023421 is a `hidden beast` number, since 1 + 1 + 313 + 2 + 4 + 0 + 2 + 342 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 610601588100 + 520722435321 = 781410^2 + 721611^2 .

It is not a de Polignac number, because 1131324023421 - 2¹³ = 1131324015229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131324023471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62851334626 + ... + 62851334643.

Almost surely, 2^{1131324023421} is an apocalyptic number.

It is an amenable number.

1131324023421 is a deficient number, since it is larger than the sum of its proper divisors (502810677089).

1131324023421 is a wasteful number, since it uses less digits than its factorization.

1131324023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125702669275 (or 125702669272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1131324023421 its reverse (1243204231311), we get a palindrome (2374528254732).

The spelling of 1131324023421 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-four million, twenty-three thousand, four hundred twenty-one".