20480431061 has 8 divisors (see below), whose sum is σ = 20630971200. Its totient is φ = 20330367552.

The previous prime is 20480431051. The next prime is 20480431073. The reversal of 20480431061 is 16013408402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20480431061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480431021) 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, 32675 + ... + 205008.

It is an arithmetic number, because the mean of its divisors is an integer number (2578871400).

Almost surely, 2^20480431061 is an apocalyptic number.

It is an amenable number.

20480431061 is a deficient number, since it is larger than the sum of its proper divisors (150540139).

20480431061 is a wasteful number, since it uses less digits than its factorization.

20480431061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238315.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20480431061 its reverse (16013408402), we get a palindrome (36493839463).

The spelling of 20480431061 in words is "twenty billion, four hundred eighty million, four hundred thirty-one thousand, sixty-one".