1331421044 has 24 divisors (see below), whose sum is σ = 2395333248. Its totient is φ = 647156160.

The previous prime is 1331421037. The next prime is 1331421071. The reversal of 1331421044 is 4401241331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32069 + ... + 60755.

It is an arithmetic number, because the mean of its divisors is an integer number (99805552).

Almost surely, 2^1331421044 is an apocalyptic number.

It is an amenable number.

1331421044 is a deficient number, since it is larger than the sum of its proper divisors (1063912204).

1331421044 is a wasteful number, since it uses less digits than its factorization.

1331421044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29015 (or 29013 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1331421044 is about 36488.6426713847. The cubic root of 1331421044 is about 1100.1159778542.

Adding to 1331421044 its reverse (4401241331), we get a palindrome (5732662375).

The spelling of 1331421044 in words is "one billion, three hundred thirty-one million, four hundred twenty-one thousand, forty-four".