20107412811 has 8 divisors (see below), whose sum is σ = 29788759760. Its totient is φ = 13404941856.

The previous prime is 20107412761. The next prime is 20107412833. The reversal of 20107412811 is 11821470102.

It is not a de Polignac number, because 20107412811 - 2⁶ = 20107412747 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: 744718993 = 20107412811 / (2 + 0 + 1 + 0 + 7 + 4 + 1 + 2 + 8 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20107412011) 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, 372359470 + ... + 372359523.

It is an arithmetic number, because the mean of its divisors is an integer number (3723594970).

Almost surely, 2^20107412811 is an apocalyptic number.

20107412811 is a deficient number, since it is larger than the sum of its proper divisors (9681346949).

20107412811 is an equidigital number, since it uses as much as digits as its factorization.

20107412811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744719002 (or 744718996 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

Adding to 20107412811 its reverse (11821470102), we get a palindrome (31928882913).

The spelling of 20107412811 in words is "twenty billion, one hundred seven million, four hundred twelve thousand, eight hundred eleven".