621035144416223 has 2 divisors, whose sum is σ = 621035144416224. Its totient is φ = 621035144416222.

The previous prime is 621035144416213. The next prime is 621035144416283. The reversal of 621035144416223 is 322614441530126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621035144416223 - 2³² = 621030849448927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (621035144416213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310517572208111 + 310517572208112.

It is an arithmetic number, because the mean of its divisors is an integer number (310517572208112).

Almost surely, 2^{621035144416223} is an apocalyptic number.

621035144416223 is a deficient number, since it is larger than the sum of its proper divisors (1).

621035144416223 is an equidigital number, since it uses as much as digits as its factorization.

621035144416223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

Adding to 621035144416223 its reverse (322614441530126), we get a palindrome (943649585946349).

The spelling of 621035144416223 in words is "six hundred twenty-one trillion, thirty-five billion, one hundred forty-four million, four hundred sixteen thousand, two hundred twenty-three".