1431341401221 has 96 divisors (see below), whose sum is σ = 2323912032000. Its totient is φ = 843617617920.

The previous prime is 1431341401213. The next prime is 1431341401223. The reversal of 1431341401221 is 1221041431341.

It is a happy number.

1431341401221 is a `hidden beast` number, since 1 + 4 + 3 + 1 + 34 + 1 + 401 + 221 = 666.

It is not a de Polignac number, because 1431341401221 - 2³ = 1431341401213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431341401223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 273310615 + ... + 273315851.

It is an arithmetic number, because the mean of its divisors is an integer number (24207417000).

Almost surely, 2^{1431341401221} is an apocalyptic number.

It is an amenable number.

1431341401221 is a deficient number, since it is larger than the sum of its proper divisors (892570630779).

1431341401221 is a wasteful number, since it uses less digits than its factorization.

1431341401221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6056 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1431341401221 its reverse (1221041431341), we get a palindrome (2652382832562).

The spelling of 1431341401221 in words is "one trillion, four hundred thirty-one billion, three hundred forty-one million, four hundred one thousand, two hundred twenty-one".