20106105407 has 2 divisors, whose sum is σ = 20106105408. Its totient is φ = 20106105406.

The previous prime is 20106105403. The next prime is 20106105511. The reversal of 20106105407 is 70450160102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20106105407 - 2² = 20106105403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20106105401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053052703 + 10053052704.

It is an arithmetic number, because the mean of its divisors is an integer number (10053052704).

Almost surely, 2^20106105407 is an apocalyptic number.

20106105407 is a deficient number, since it is larger than the sum of its proper divisors (1).

20106105407 is an equidigital number, since it uses as much as digits as its factorization.

20106105407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 20106105407 its reverse (70450160102), we get a palindrome (90556265509).

The spelling of 20106105407 in words is "twenty billion, one hundred six million, one hundred five thousand, four hundred seven".