20315461040032 has 48 divisors (see below), whose sum is σ = 41750723004480. Its totient is φ = 9712435087872.

The previous prime is 20315461040023. The next prime is 20315461040053. The reversal of 20315461040032 is 23004016451302.

It is a super-4 number, since 4×20315461040032⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20315461039976 and 20315461040003.

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, 3233373 + ... + 7147420.

It is an arithmetic number, because the mean of its divisors is an integer number (869806729260).

Almost surely, 2^{20315461040032} is an apocalyptic number.

It is an amenable number.

20315461040032 is an abundant number, since it is smaller than the sum of its proper divisors (21435261964448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315461040032 is a wasteful number, since it uses less digits than its factorization.

20315461040032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383485 (or 10383477 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20315461040032 its reverse (23004016451302), we get a palindrome (43319477491334).

The spelling of 20315461040032 in words is "twenty trillion, three hundred fifteen billion, four hundred sixty-one million, forty thousand, thirty-two".