42433421220231 has 4 divisors (see below), whose sum is σ = 56577894960312. Its totient is φ = 28288947480152.

The previous prime is 42433421220133. The next prime is 42433421220251. The reversal of 42433421220231 is 13202212433424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42433421220231 - 2⁹ = 42433421219719 is a prime.

It is a super-2 number, since 2×42433421220231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42433421220192 and 42433421220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42433421220251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072236870036 + ... + 7072236870041.

It is an arithmetic number, because the mean of its divisors is an integer number (14144473740078).

Almost surely, 2^{42433421220231} is an apocalyptic number.

42433421220231 is a deficient number, since it is larger than the sum of its proper divisors (14144473740081).

42433421220231 is a wasteful number, since it uses less digits than its factorization.

42433421220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144473740080.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 42433421220231 its reverse (13202212433424), we get a palindrome (55635633653655).

The spelling of 42433421220231 in words is "forty-two trillion, four hundred thirty-three billion, four hundred twenty-one million, two hundred twenty thousand, two hundred thirty-one".