421051773123 has 12 divisors (see below), whose sum is σ = 608384234328. Its totient is φ = 280609640640.

The previous prime is 421051773101. The next prime is 421051773151. The reversal of 421051773123 is 321377150124.

421051773123 is a `hidden beast` number, since 4 + 2 + 10 + 517 + 7 + 3 + 123 = 666.

It is not a de Polignac number, because 421051773123 - 2¹⁴ = 421051756739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421051773173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7599318 + ... + 7654523.

It is an arithmetic number, because the mean of its divisors is an integer number (50698686194).

Almost surely, 2^421051773123 is an apocalyptic number.

421051773123 is a deficient number, since it is larger than the sum of its proper divisors (187332461205).

421051773123 is a wasteful number, since it uses less digits than its factorization.

421051773123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256914 (or 15256911 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 421051773123 in words is "four hundred twenty-one billion, fifty-one million, seven hundred seventy-three thousand, one hundred twenty-three".