421021412043 has 8 divisors (see below), whose sum is σ = 561371633808. Its totient is φ = 280676065824.

The previous prime is 421021412023. The next prime is 421021412081. The reversal of 421021412043 is 340214120124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421021412043 - 2¹⁴ = 421021395659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421021412003) 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 in 7 ways as a sum of consecutive naturals, for example, 1012396 + ... + 1366377.

It is an arithmetic number, because the mean of its divisors is an integer number (70171454226).

Almost surely, 2^421021412043 is an apocalyptic number.

421021412043 is a deficient number, since it is larger than the sum of its proper divisors (140350221765).

421021412043 is a wasteful number, since it uses less digits than its factorization.

421021412043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437773.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421021412043 its reverse (340214120124), we get a palindrome (761235532167).

The spelling of 421021412043 in words is "four hundred twenty-one billion, twenty-one million, four hundred twelve thousand, forty-three".