20541031432 has 32 divisors (see below), whose sum is σ = 38908084320. Its totient is φ = 10165978240.

The previous prime is 20541031417. The next prime is 20541031451. The reversal of 20541031432 is 23413014502.

It is a junction number, because it is equal to n+sod(n) for n = 20541031397 and 20541031406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353307 + ... + 407317.

It is an arithmetic number, because the mean of its divisors is an integer number (1215877635).

Almost surely, 2^20541031432 is an apocalyptic number.

It is an amenable number.

20541031432 is a deficient number, since it is larger than the sum of its proper divisors (18367052888).

20541031432 is a wasteful number, since it uses less digits than its factorization.

20541031432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54501 (or 54497 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20541031432 its reverse (23413014502), we get a palindrome (43954045934).

The spelling of 20541031432 in words is "twenty billion, five hundred forty-one million, thirty-one thousand, four hundred thirty-two".