60531201421 has 2 divisors, whose sum is σ = 60531201422. Its totient is φ = 60531201420.

The previous prime is 60531201377. The next prime is 60531201439. The reversal of 60531201421 is 12410213506.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59494039396 + 1037162025 = 243914^2 + 32205^2 .

It is a cyclic number.

It is not a de Polignac number, because 60531201421 - 2¹⁵ = 60531168653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60531201481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30265600710 + 30265600711.

It is an arithmetic number, because the mean of its divisors is an integer number (30265600711).

Almost surely, 2^60531201421 is an apocalyptic number.

It is an amenable number.

60531201421 is a deficient number, since it is larger than the sum of its proper divisors (1).

60531201421 is an equidigital number, since it uses as much as digits as its factorization.

60531201421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 60531201421 its reverse (12410213506), we get a palindrome (72941414927).

The spelling of 60531201421 in words is "sixty billion, five hundred thirty-one million, two hundred one thousand, four hundred twenty-one".