623421537103 has 2 divisors, whose sum is σ = 623421537104. Its totient is φ = 623421537102.

The previous prime is 623421537071. The next prime is 623421537119. The reversal of 623421537103 is 301735124326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623421537103 - 2⁵ = 623421537071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623421532103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311710768551 + 311710768552.

It is an arithmetic number, because the mean of its divisors is an integer number (311710768552).

Almost surely, 2^623421537103 is an apocalyptic number.

623421537103 is a deficient number, since it is larger than the sum of its proper divisors (1).

623421537103 is an equidigital number, since it uses as much as digits as its factorization.

623421537103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 623421537103 in words is "six hundred twenty-three billion, four hundred twenty-one million, five hundred thirty-seven thousand, one hundred three".