20101012699 has 2 divisors, whose sum is σ = 20101012700. Its totient is φ = 20101012698.

The previous prime is 20101012697. The next prime is 20101012733. The reversal of 20101012699 is 99621010102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20101012699 - 2¹ = 20101012697 is a prime.

Together with 20101012697, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20101012699.

It is not a weakly prime, because it can be changed into another prime (20101012691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050506349 + 10050506350.

It is an arithmetic number, because the mean of its divisors is an integer number (10050506350).

Almost surely, 2^20101012699 is an apocalyptic number.

20101012699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101012699 is an equidigital number, since it uses as much as digits as its factorization.

20101012699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 20101012699 in words is "twenty billion, one hundred one million, twelve thousand, six hundred ninety-nine".