2421210013493 has 2 divisors, whose sum is σ = 2421210013494. Its totient is φ = 2421210013492.

The previous prime is 2421210013441. The next prime is 2421210013517. The reversal of 2421210013493 is 3943100121242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2000363292964 + 420846720529 = 1414342^2 + 648727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421210013493 - 2⁸ = 2421210013237 is a prime.

It is a super-2 number, since 2×2421210013493² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421210013433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210605006746 + 1210605006747.

It is an arithmetic number, because the mean of its divisors is an integer number (1210605006747).

Almost surely, 2^{2421210013493} is an apocalyptic number.

It is an amenable number.

2421210013493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421210013493 is an equidigital number, since it uses as much as digits as its factorization.

2421210013493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 2421210013493 in words is "two trillion, four hundred twenty-one billion, two hundred ten million, thirteen thousand, four hundred ninety-three".