1532233540421 has 2 divisors, whose sum is σ = 1532233540422. Its totient is φ = 1532233540420.

The previous prime is 1532233540399. The next prime is 1532233540423. The reversal of 1532233540421 is 1240453322351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 772006492321 + 760227048100 = 878639^2 + 871910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1532233540421 - 2³⁸ = 1257355633477 is a prime.

Together with 1532233540423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1532233540423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766116770210 + 766116770211.

It is an arithmetic number, because the mean of its divisors is an integer number (766116770211).

Almost surely, 2^{1532233540421} is an apocalyptic number.

It is an amenable number.

1532233540421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532233540421 is an equidigital number, since it uses as much as digits as its factorization.

1532233540421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1532233540421 its reverse (1240453322351), we get a palindrome (2772686862772).

The spelling of 1532233540421 in words is "one trillion, five hundred thirty-two billion, two hundred thirty-three million, five hundred forty thousand, four hundred twenty-one".