20150012101 has 2 divisors, whose sum is σ = 20150012102. Its totient is φ = 20150012100.

The previous prime is 20150012041. The next prime is 20150012137. The reversal of 20150012101 is 10121005102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19495419876 + 654592225 = 139626^2 + 25585^2 .

It is a cyclic number.

It is not a de Polignac number, because 20150012101 - 2²¹ = 20147914949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150012401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075006050 + 10075006051.

It is an arithmetic number, because the mean of its divisors is an integer number (10075006051).

Almost surely, 2^20150012101 is an apocalyptic number.

It is an amenable number.

20150012101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150012101 is an equidigital number, since it uses as much as digits as its factorization.

20150012101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 13.

Adding to 20150012101 its reverse (10121005102), we get a palindrome (30271017203).

It can be divided in two parts, 2015001 and 2101, that added together give a palindrome (2017102).

The spelling of 20150012101 in words is "twenty billion, one hundred fifty million, twelve thousand, one hundred one".