1331355052 has 6 divisors (see below), whose sum is σ = 2329871348. Its totient is φ = 665677524.

The previous prime is 1331355043. The next prime is 1331355083. The reversal of 1331355052 is 2505531331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331355052.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 166419378 + ... + 166419385.

Almost surely, 2^1331355052 is an apocalyptic number.

It is an amenable number.

1331355052 is a deficient number, since it is larger than the sum of its proper divisors (998516296).

1331355052 is a wasteful number, since it uses less digits than its factorization.

1331355052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332838767 (or 332838765 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 1331355052 is about 36487.7383788034. The cubic root of 1331355052 is about 1100.0978017724.

Adding to 1331355052 its reverse (2505531331), we get a palindrome (3836886383).

The spelling of 1331355052 in words is "one billion, three hundred thirty-one million, three hundred fifty-five thousand, fifty-two".