1332402001421 has 4 divisors (see below), whose sum is σ = 1354244657244. Its totient is φ = 1310559345600.

The previous prime is 1332402001397. The next prime is 1332402001433. The reversal of 1332402001421 is 1241002042331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21867015625 + 1310534985796 = 147875^2 + 1144786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1332402001421 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 (1332402081421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10921327820 + ... + 10921327941.

It is an arithmetic number, because the mean of its divisors is an integer number (338561164311).

Almost surely, 2^{1332402001421} is an apocalyptic number.

It is an amenable number.

1332402001421 is a deficient number, since it is larger than the sum of its proper divisors (21842655823).

1332402001421 is an equidigital number, since it uses as much as digits as its factorization.

1332402001421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21842655822.

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

Adding to 1332402001421 its reverse (1241002042331), we get a palindrome (2573404043752).

The spelling of 1332402001421 in words is "one trillion, three hundred thirty-two billion, four hundred two million, one thousand, four hundred twenty-one".