20131080461 has 2 divisors, whose sum is σ = 20131080462. Its totient is φ = 20131080460.

The previous prime is 20131080413. The next prime is 20131080511. The reversal of 20131080461 is 16408013102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19658844100 + 472236361 = 140210^2 + 21731^2 .

It is a cyclic number.

It is not a de Polignac number, because 20131080461 - 2⁶ = 20131080397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20131080461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131086461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065540230 + 10065540231.

It is an arithmetic number, because the mean of its divisors is an integer number (10065540231).

Almost surely, 2^20131080461 is an apocalyptic number.

It is an amenable number.

20131080461 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131080461 is an equidigital number, since it uses as much as digits as its factorization.

20131080461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 20131080461 its reverse (16408013102), we get a palindrome (36539093563).

The spelling of 20131080461 in words is "twenty billion, one hundred thirty-one million, eighty thousand, four hundred sixty-one".