24220420031 has 4 divisors (see below), whose sum is σ = 25495179000. Its totient is φ = 22945661064.

The previous prime is 24220419973. The next prime is 24220420051. The reversal of 24220420031 is 13002402242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24220420031 is a prime.

It is a super-2 number, since 2×24220420031² (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 = 24220419985 and 24220420012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24220420051) 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, 637379456 + ... + 637379493.

It is an arithmetic number, because the mean of its divisors is an integer number (6373794750).

Almost surely, 2^24220420031 is an apocalyptic number.

24220420031 is a deficient number, since it is larger than the sum of its proper divisors (1274758969).

24220420031 is a wasteful number, since it uses less digits than its factorization.

24220420031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274758968.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 24220420031 its reverse (13002402242), we get a palindrome (37222822273).

The spelling of 24220420031 in words is "twenty-four billion, two hundred twenty million, four hundred twenty thousand, thirty-one".