1321141444 has 48 divisors (see below), whose sum is σ = 2694030976. Its totient is φ = 555206400.

The previous prime is 1321141439. The next prime is 1321141447. The reversal of 1321141444 is 4441411231.

It is not an unprimeable number, because it can be changed into a prime (1321141447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368179 + ... + 371749.

Almost surely, 2^1321141444 is an apocalyptic number.

1321141444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1321141444 is an abundant number, since it is smaller than the sum of its proper divisors (1372889532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321141444 is a wasteful number, since it uses less digits than its factorization.

1321141444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836 (or 3834 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 1321141444 is about 36347.5094607595. The cubic root of 1321141444 is about 1097.2774112855.

Adding to 1321141444 its reverse (4441411231), we get a palindrome (5762552675).

The spelling of 1321141444 in words is "one billion, three hundred twenty-one million, one hundred forty-one thousand, four hundred forty-four".