42400121301 has 16 divisors (see below), whose sum is σ = 62854147200. Its totient is φ = 28249128864.

The previous prime is 42400121299. The next prime is 42400121389. The reversal of 42400121301 is 10312100424.

42400121301 is a `hidden beast` number, since 4 + 240 + 0 + 121 + 301 = 666.

It is not a de Polignac number, because 42400121301 - 2¹ = 42400121299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400521301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445216 + ... + 531993.

It is an arithmetic number, because the mean of its divisors is an integer number (3928384200).

Almost surely, 2^42400121301 is an apocalyptic number.

It is an amenable number.

42400121301 is a deficient number, since it is larger than the sum of its proper divisors (20454025899).

42400121301 is a wasteful number, since it uses less digits than its factorization.

42400121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978825 (or 978819 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 42400121301 its reverse (10312100424), we get a palindrome (52712221725).

The spelling of 42400121301 in words is "forty-two billion, four hundred million, one hundred twenty-one thousand, three hundred one".