1331420332 has 12 divisors (see below), whose sum is σ = 2541802536. Its totient is φ = 605191040.

The previous prime is 1331420291. The next prime is 1331420341. The reversal of 1331420332 is 2330241331.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 in 3 ways as a sum of consecutive naturals, for example, 15129733 + ... + 15129820.

It is an arithmetic number, because the mean of its divisors is an integer number (211816878).

Almost surely, 2^1331420332 is an apocalyptic number.

It is an amenable number.

1331420332 is a deficient number, since it is larger than the sum of its proper divisors (1210382204).

1331420332 is a wasteful number, since it uses less digits than its factorization.

1331420332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30259568 (or 30259566 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1331420332 is about 36488.6329149230. The cubic root of 1331420332 is about 1100.1157817522.

Adding to 1331420332 its reverse (2330241331), we get a palindrome (3661661663).

The spelling of 1331420332 in words is "one billion, three hundred thirty-one million, four hundred twenty thousand, three hundred thirty-two".