20120023201 has 2 divisors, whose sum is σ = 20120023202. Its totient is φ = 20120023200.

The previous prime is 20120023199. The next prime is 20120023211. The reversal of 20120023201 is 10232002102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20118585600 + 1437601 = 141840^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120023201 - 2¹ = 20120023199 is a prime.

Together with 20120023199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20120023211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060011600 + 10060011601.

It is an arithmetic number, because the mean of its divisors is an integer number (10060011601).

Almost surely, 2^20120023201 is an apocalyptic number.

It is an amenable number.

20120023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120023201 is an equidigital number, since it uses as much as digits as its factorization.

20120023201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20120023201 its reverse (10232002102), we get a palindrome (30352025303).

The spelling of 20120023201 in words is "twenty billion, one hundred twenty million, twenty-three thousand, two hundred one".