20150134201 has 4 divisors (see below), whose sum is σ = 21210667600. Its totient is φ = 19089600804.

The previous prime is 20150134181. The next prime is 20150134219. The reversal of 20150134201 is 10243105102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20150134201 - 2⁷ = 20150134073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1060533379 = 20150134201 / (2 + 0 + 1 + 5 + 0 + 1 + 3 + 4 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20150134231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530266671 + ... + 530266708.

It is an arithmetic number, because the mean of its divisors is an integer number (5302666900).

Almost surely, 2^20150134201 is an apocalyptic number.

It is an amenable number.

20150134201 is a deficient number, since it is larger than the sum of its proper divisors (1060533399).

20150134201 is a wasteful number, since it uses less digits than its factorization.

20150134201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060533398.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 20150134201 its reverse (10243105102), we get a palindrome (30393239303).

The spelling of 20150134201 in words is "twenty billion, one hundred fifty million, one hundred thirty-four thousand, two hundred one".