1131023141321 has 4 divisors (see below), whose sum is σ = 1138227110532. Its totient is φ = 1123819172112.

The previous prime is 1131023141267. The next prime is 1131023141341. The reversal of 1131023141321 is 1231413201311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356510497225 + 774512644096 = 597085^2 + 880064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131023141321 - 2¹⁴ = 1131023124937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131023141341) 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, 3601984370 + ... + 3601984683.

It is an arithmetic number, because the mean of its divisors is an integer number (284556777633).

Almost surely, 2^{1131023141321} is an apocalyptic number.

It is an amenable number.

1131023141321 is a deficient number, since it is larger than the sum of its proper divisors (7203969211).

1131023141321 is an equidigital number, since it uses as much as digits as its factorization.

1131023141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203969210.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1131023141321 its reverse (1231413201311), we get a palindrome (2362436342632).

The spelling of 1131023141321 in words is "one trillion, one hundred thirty-one billion, twenty-three million, one hundred forty-one thousand, three hundred twenty-one".