20315100600261 has 8 divisors (see below), whose sum is σ = 30096445333760. Its totient is φ = 13543400400156.

The previous prime is 20315100600253. The next prime is 20315100600337. The reversal of 20315100600261 is 16200600151302.

20315100600261 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 51 + 0 + 0 + 600 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 20315100600261 - 2³ = 20315100600253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 752411133343 = 20315100600261 / (2 + 0 + 3 + 1 + 5 + 1 + 0 + 0 + 6 + 0 + 0 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315100600241) 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, 376205566645 + ... + 376205566698.

It is an arithmetic number, because the mean of its divisors is an integer number (3762055666720).

Almost surely, 2^{20315100600261} is an apocalyptic number.

It is an amenable number.

20315100600261 is a deficient number, since it is larger than the sum of its proper divisors (9781344733499).

20315100600261 is an equidigital number, since it uses as much as digits as its factorization.

20315100600261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752411133352 (or 752411133346 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 20315100600261 its reverse (16200600151302), we get a palindrome (36515700751563).

The spelling of 20315100600261 in words is "twenty trillion, three hundred fifteen billion, one hundred million, six hundred thousand, two hundred sixty-one".