20201042431 has 8 divisors (see below), whose sum is σ = 20404729584. Its totient is φ = 19997792640.

The previous prime is 20201042429. The next prime is 20201042441. The reversal of 20201042431 is 13424010202.

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

It is a cyclic number.

It is not a de Polignac number, because 20201042431 - 2¹ = 20201042429 is a prime.

It is a super-2 number, since 2×20201042431² (a number of 21 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 = 20201042399 and 20201042408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201042441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16101 + ... + 201646.

It is an arithmetic number, because the mean of its divisors is an integer number (2550591198).

Almost surely, 2^20201042431 is an apocalyptic number.

20201042431 is a deficient number, since it is larger than the sum of its proper divisors (203687153).

20201042431 is a wasteful number, since it uses less digits than its factorization.

20201042431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218681.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20201042431 its reverse (13424010202), we get a palindrome (33625052633).

The spelling of 20201042431 in words is "twenty billion, two hundred one million, forty-two thousand, four hundred thirty-one".