421532150623 has 2 divisors, whose sum is σ = 421532150624. Its totient is φ = 421532150622.

The previous prime is 421532150581. The next prime is 421532150681. The reversal of 421532150623 is 326051235124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421532150623 - 2⁹ = 421532150111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421532156623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210766075311 + 210766075312.

It is an arithmetic number, because the mean of its divisors is an integer number (210766075312).

Almost surely, 2^421532150623 is an apocalyptic number.

421532150623 is a deficient number, since it is larger than the sum of its proper divisors (1).

421532150623 is an equidigital number, since it uses as much as digits as its factorization.

421532150623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 421532150623 its reverse (326051235124), we get a palindrome (747583385747).

The spelling of 421532150623 in words is "four hundred twenty-one billion, five hundred thirty-two million, one hundred fifty thousand, six hundred twenty-three".