421401101042042 has 16 divisors (see below), whose sum is σ = 711809484459264. Its totient is φ = 185367053244000.

The previous prime is 421401101041979. The next prime is 421401101042069. The reversal of 421401101042042 is 240240101104124.

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, 308945088059 + ... + 308945089422.

It is an arithmetic number, because the mean of its divisors is an integer number (44488092778704).

Almost surely, 2^{421401101042042} is an apocalyptic number.

421401101042042 is a deficient number, since it is larger than the sum of its proper divisors (290408383417222).

421401101042042 is a wasteful number, since it uses less digits than its factorization.

421401101042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617890177525.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 421401101042042 its reverse (240240101104124), we get a palindrome (661641202146166).

The spelling of 421401101042042 in words is "four hundred twenty-one trillion, four hundred one billion, one hundred one million, forty-two thousand, forty-two".