42201220431 has 8 divisors (see below), whose sum is σ = 56640932224. Its totient is φ = 27947827800.

The previous prime is 42201220381. The next prime is 42201220489. The reversal of 42201220431 is 13402210224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42201220431 - 2⁶ = 42201220367 is a prime.

It is a super-2 number, since 2×42201220431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42201220398 and 42201220407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42201224431) 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 7 ways as a sum of consecutive naturals, for example, 46579261 + ... + 46580166.

It is an arithmetic number, because the mean of its divisors is an integer number (7080116528).

Almost surely, 2^42201220431 is an apocalyptic number.

42201220431 is a deficient number, since it is larger than the sum of its proper divisors (14439711793).

42201220431 is a wasteful number, since it uses less digits than its factorization.

42201220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93159581.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42201220431 its reverse (13402210224), we get a palindrome (55603430655).

The spelling of 42201220431 in words is "forty-two billion, two hundred one million, two hundred twenty thousand, four hundred thirty-one".