42110120401 has 2 divisors, whose sum is σ = 42110120402. Its totient is φ = 42110120400.

The previous prime is 42110120333. The next prime is 42110120477. The reversal of 42110120401 is 10402101124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41754835600 + 355284801 = 204340^2 + 18849^2 .

It is a cyclic number.

It is not a de Polignac number, because 42110120401 - 2²⁹ = 41573249489 is a prime.

It is not a weakly prime, because it can be changed into another prime (42110120491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21055060200 + 21055060201.

It is an arithmetic number, because the mean of its divisors is an integer number (21055060201).

Almost surely, 2^42110120401 is an apocalyptic number.

It is an amenable number.

42110120401 is a deficient number, since it is larger than the sum of its proper divisors (1).

42110120401 is an equidigital number, since it uses as much as digits as its factorization.

42110120401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 42110120401 its reverse (10402101124), we get a palindrome (52512221525).

The spelling of 42110120401 in words is "forty-two billion, one hundred ten million, one hundred twenty thousand, four hundred one".