421142402043 has 12 divisors (see below), whose sum is σ = 663618330648. Its totient is φ = 255237819360.

The previous prime is 421142401961. The next prime is 421142402063. The reversal of 421142402043 is 340204241124.

421142402043 is a `hidden beast` number, since 4 + 211 + 4 + 2 + 402 + 0 + 43 = 666.

It is not a de Polignac number, because 421142402043 - 2¹³ = 421142393851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421142401998 and 421142402016.

It is not an unprimeable number, because it can be changed into a prime (421142402063) 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 11 ways as a sum of consecutive naturals, for example, 2126981730 + ... + 2126981927.

It is an arithmetic number, because the mean of its divisors is an integer number (55301527554).

Almost surely, 2^421142402043 is an apocalyptic number.

421142402043 is a deficient number, since it is larger than the sum of its proper divisors (242475928605).

421142402043 is a wasteful number, since it uses less digits than its factorization.

421142402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253963674 (or 4253963671 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 421142402043 its reverse (340204241124), we get a palindrome (761346643167).

The spelling of 421142402043 in words is "four hundred twenty-one billion, one hundred forty-two million, four hundred two thousand, forty-three".