20201002115 has 8 divisors (see below), whose sum is σ = 27704231520. Its totient is φ = 13852115712.

The previous prime is 20201002057. The next prime is 20201002117. The reversal of 20201002115 is 51120010202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201002115 - 2¹⁸ = 20200739971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20201002115.

It is not an unprimeable number, because it can be changed into a prime (20201002117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288585710 + ... + 288585779.

It is an arithmetic number, because the mean of its divisors is an integer number (3463028940).

Almost surely, 2^20201002115 is an apocalyptic number.

20201002115 is a deficient number, since it is larger than the sum of its proper divisors (7503229405).

20201002115 is an equidigital number, since it uses as much as digits as its factorization.

20201002115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577171501.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20201002115 its reverse (51120010202), we get a palindrome (71321012317).

The spelling of 20201002115 in words is "twenty billion, two hundred one million, two thousand, one hundred fifteen".