421402304545042 has 16 divisors (see below), whose sum is σ = 632147859375552. Its totient is φ = 210686351938960.

The previous prime is 421402304545003. The next prime is 421402304545063. The reversal of 421402304545042 is 240545403204124.

It is a junction number, because it is equal to n+sod(n) for n = 421402304544986 and 421402304545004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264208153 + ... + 2264394259.

It is an arithmetic number, because the mean of its divisors is an integer number (39509241210972).

Almost surely, 2^{421402304545042} is an apocalyptic number.

421402304545042 is a deficient number, since it is larger than the sum of its proper divisors (210745554830510).

421402304545042 is a wasteful number, since it uses less digits than its factorization.

421402304545042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259553.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 421402304545042 its reverse (240545403204124), we get a palindrome (661947707749166).

The spelling of 421402304545042 in words is "four hundred twenty-one trillion, four hundred two billion, three hundred four million, five hundred forty-five thousand, forty-two".