20131002201 has 4 divisors (see below), whose sum is σ = 26841336272. Its totient is φ = 13420668132.

The previous prime is 20131002197. The next prime is 20131002233. The reversal of 20131002201 is 10220013102.

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 not a de Polignac number, because 20131002201 - 2² = 20131002197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131002601) 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, 3355167031 + ... + 3355167036.

It is an arithmetic number, because the mean of its divisors is an integer number (6710334068).

Almost surely, 2^20131002201 is an apocalyptic number.

It is an amenable number.

20131002201 is a deficient number, since it is larger than the sum of its proper divisors (6710334071).

20131002201 is an equidigital number, since it uses as much as digits as its factorization.

20131002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6710334070.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20131002201 its reverse (10220013102), we get a palindrome (30351015303).

The spelling of 20131002201 in words is "twenty billion, one hundred thirty-one million, two thousand, two hundred one".