1402431411221 has 8 divisors (see below), whose sum is σ = 1434081012000. Its totient is φ = 1371044463120.

The previous prime is 1402431411211. The next prime is 1402431411223. The reversal of 1402431411221 is 1221141342041.

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-1402431411221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402431411223) 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, 65652371 + ... + 65673728.

It is an arithmetic number, because the mean of its divisors is an integer number (179260126500).

Almost surely, 2^{1402431411221} is an apocalyptic number.

It is an amenable number.

1402431411221 is a deficient number, since it is larger than the sum of its proper divisors (31649600779).

1402431411221 is a wasteful number, since it uses less digits than its factorization.

1402431411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131326339.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1402431411221 its reverse (1221141342041), we get a palindrome (2623572753262).

The spelling of 1402431411221 in words is "one trillion, four hundred two billion, four hundred thirty-one million, four hundred eleven thousand, two hundred twenty-one".