20041132431 has 24 divisors (see below), whose sum is σ = 28989838080. Its totient is φ = 12307253632.

The previous prime is 20041132351. The next prime is 20041132439. The reversal of 20041132431 is 13423114002.

It is not a de Polignac number, because 20041132431 - 2¹³ = 20041124239 is a prime.

It is a super-2 number, since 2×20041132431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20041132398 and 20041132407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041132439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205161 + ... + 286658.

It is an arithmetic number, because the mean of its divisors is an integer number (1207909920).

Almost surely, 2^20041132431 is an apocalyptic number.

20041132431 is a deficient number, since it is larger than the sum of its proper divisors (8948705649).

20041132431 is a wasteful number, since it uses less digits than its factorization.

20041132431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491903 (or 491886 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20041132431 its reverse (13423114002), we get a palindrome (33464246433).

The spelling of 20041132431 in words is "twenty billion, forty-one million, one hundred thirty-two thousand, four hundred thirty-one".