20201142001 has 2 divisors, whose sum is σ = 20201142002. Its totient is φ = 20201142000.

The previous prime is 20201141993. The next prime is 20201142037. The reversal of 20201142001 is 10024110202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11406453601 + 8794688400 = 106801^2 + 93780^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201142001 - 2³ = 20201141993 is a prime.

It is a super-2 number, since 2×20201142001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20201142601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100571000 + 10100571001.

It is an arithmetic number, because the mean of its divisors is an integer number (10100571001).

Almost surely, 2^20201142001 is an apocalyptic number.

It is an amenable number.

20201142001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201142001 is an equidigital number, since it uses as much as digits as its factorization.

20201142001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201142001 its reverse (10024110202), we get a palindrome (30225252203).

The spelling of 20201142001 in words is "twenty billion, two hundred one million, one hundred forty-two thousand, one".