240220124431 has 10 divisors (see below), whose sum is σ = 280240139632. Its totient is φ = 205902961740.

The previous prime is 240220124429. The next prime is 240220124491. The reversal of 240220124431 is 134421022042.

It is not a de Polignac number, because 240220124431 - 2¹ = 240220124429 is a prime.

It is a super-2 number, since 2×240220124431² (a number of 24 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 = 240220124396 and 240220124405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240220124411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50022615 + ... + 50027416.

Almost surely, 2^240220124431 is an apocalyptic number.

240220124431 is a deficient number, since it is larger than the sum of its proper divisors (40020015201).

240220124431 is an frugal number, since it uses more digits than its factorization.

240220124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100050059 (or 100050038 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 240220124431 its reverse (134421022042), we get a palindrome (374641146473).

The spelling of 240220124431 in words is "two hundred forty billion, two hundred twenty million, one hundred twenty-four thousand, four hundred thirty-one".