1431135050221 has 8 divisors (see below), whose sum is σ = 1445271496704. Its totient is φ = 1417043411280.

The previous prime is 1431135050209. The next prime is 1431135050231. The reversal of 1431135050221 is 1220505311341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431135050221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431135050221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431135050231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11137690 + ... + 11265451.

It is an arithmetic number, because the mean of its divisors is an integer number (180658937088).

Almost surely, 2^{1431135050221} is an apocalyptic number.

It is an amenable number.

1431135050221 is a deficient number, since it is larger than the sum of its proper divisors (14136446483).

1431135050221 is a wasteful number, since it uses less digits than its factorization.

1431135050221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22403771.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 1431135050221 in words is "one trillion, four hundred thirty-one billion, one hundred thirty-five million, fifty thousand, two hundred twenty-one".