1331133142 has 32 divisors (see below), whose sum is σ = 2146798080. Its totient is φ = 617474880.

The previous prime is 1331133113. The next prime is 1331133151. The reversal of 1331133142 is 2413311331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335623 + ... + 339565.

It is an arithmetic number, because the mean of its divisors is an integer number (67087440).

Almost surely, 2^1331133142 is an apocalyptic number.

1331133142 is a deficient number, since it is larger than the sum of its proper divisors (815664938).

1331133142 is a wasteful number, since it uses less digits than its factorization.

1331133142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188.

The product of its digits is 648, while the sum is 22.

The square root of 1331133142 is about 36484.6973675266. The cubic root of 1331133142 is about 1100.0366770140.

Adding to 1331133142 its reverse (2413311331), we get a palindrome (3744444473).

The spelling of 1331133142 in words is "one billion, three hundred thirty-one million, one hundred thirty-three thousand, one hundred forty-two".