20100201013 has 4 divisors (see below), whose sum is σ = 20113145388. Its totient is φ = 20087256640.

The previous prime is 20100201001. The next prime is 20100201029. The reversal of 20100201013 is 31010200102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 965842084 + 19134358929 = 31078^2 + 138327^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100201013 - 2²⁵ = 20066646581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100201083) 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, 6469858 + ... + 6472963.

It is an arithmetic number, because the mean of its divisors is an integer number (5028286347).

Almost surely, 2^20100201013 is an apocalyptic number.

It is an amenable number.

20100201013 is a deficient number, since it is larger than the sum of its proper divisors (12944375).

20100201013 is a wasteful number, since it uses less digits than its factorization.

20100201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12944374.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20100201013 its reverse (31010200102), we get a palindrome (51110401115).

The spelling of 20100201013 in words is "twenty billion, one hundred million, two hundred one thousand, thirteen".