20101012097 has 2 divisors, whose sum is σ = 20101012098. Its totient is φ = 20101012096.

The previous prime is 20101012073. The next prime is 20101012111. The reversal of 20101012097 is 79021010102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14245854736 + 5855157361 = 119356^2 + 76519^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101012097 - 2¹² = 20101008001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101012297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050506048 + 10050506049.

It is an arithmetic number, because the mean of its divisors is an integer number (10050506049).

Almost surely, 2^20101012097 is an apocalyptic number.

It is an amenable number.

20101012097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101012097 is an equidigital number, since it uses as much as digits as its factorization.

20101012097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 20101012097 its reverse (79021010102), we get a palindrome (99122022199).

The spelling of 20101012097 in words is "twenty billion, one hundred one million, twelve thousand, ninety-seven".