963543201421 has 2 divisors, whose sum is σ = 963543201422. Its totient is φ = 963543201420.

The previous prime is 963543201403. The next prime is 963543201553. The reversal of 963543201421 is 124102345369.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780969875625 + 182573325796 = 883725^2 + 427286^2 .

It is a cyclic number.

It is not a de Polignac number, because 963543201421 - 2¹³ = 963543193229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (963543201221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481771600710 + 481771600711.

It is an arithmetic number, because the mean of its divisors is an integer number (481771600711).

Almost surely, 2^963543201421 is an apocalyptic number.

It is an amenable number.

963543201421 is a deficient number, since it is larger than the sum of its proper divisors (1).

963543201421 is an equidigital number, since it uses as much as digits as its factorization.

963543201421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 963543201421 in words is "nine hundred sixty-three billion, five hundred forty-three million, two hundred one thousand, four hundred twenty-one".