1333142231 has 4 divisors (see below), whose sum is σ = 1358295912. Its totient is φ = 1307988552.

The previous prime is 1333142207. The next prime is 1333142233. The reversal of 1333142231 is 1322413331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322413331 = 181 ⋅7306151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1333142231 is a prime.

It is a super-2 number, since 2×1333142231² = 3554536416151314722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1333142197 and 1333142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333142233) 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, 12576761 + ... + 12576866.

It is an arithmetic number, because the mean of its divisors is an integer number (339573978).

Almost surely, 2^1333142231 is an apocalyptic number.

1333142231 is a deficient number, since it is larger than the sum of its proper divisors (25153681).

1333142231 is an equidigital number, since it uses as much as digits as its factorization.

1333142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25153680.

The product of its digits is 1296, while the sum is 23.

The square root of 1333142231 is about 36512.2202967719. The cubic root of 1333142231 is about 1100.5898299523.

Adding to 1333142231 its reverse (1322413331), we get a palindrome (2655555562).

The spelling of 1333142231 in words is "one billion, three hundred thirty-three million, one hundred forty-two thousand, two hundred thirty-one".