20010031201 has 4 divisors (see below), whose sum is σ = 20153988400. Its totient is φ = 19866074004.

The previous prime is 20010031199. The next prime is 20010031231. The reversal of 20010031201 is 10213001002.

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 20010031201 - 2¹ = 20010031199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010031231) 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, 71978391 + ... + 71978668.

It is an arithmetic number, because the mean of its divisors is an integer number (5038497100).

Almost surely, 2^20010031201 is an apocalyptic number.

It is an amenable number.

20010031201 is a deficient number, since it is larger than the sum of its proper divisors (143957199).

20010031201 is a wasteful number, since it uses less digits than its factorization.

20010031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143957198.

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

Adding to 20010031201 its reverse (10213001002), we get a palindrome (30223032203).

The spelling of 20010031201 in words is "twenty billion, ten million, thirty-one thousand, two hundred one".