20111142201 has 8 divisors (see below), whose sum is σ = 27980719680. Its totient is φ = 12824496432.

The previous prime is 20111142193. The next prime is 20111142209. The reversal of 20111142201 is 10224111102.

It is an interprime number because it is at equal distance from previous prime (20111142193) and next prime (20111142209).

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

It is not a de Polignac number, because 20111142201 - 2³ = 20111142193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111142209) 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, 145732846 + ... + 145732983.

It is an arithmetic number, because the mean of its divisors is an integer number (3497589960).

Almost surely, 2^20111142201 is an apocalyptic number.

It is an amenable number.

20111142201 is a deficient number, since it is larger than the sum of its proper divisors (7869577479).

20111142201 is a wasteful number, since it uses less digits than its factorization.

20111142201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291465855.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20111142201 its reverse (10224111102), we get a palindrome (30335253303).

The spelling of 20111142201 in words is "twenty billion, one hundred eleven million, one hundred forty-two thousand, two hundred one".