20120201137 has 2 divisors, whose sum is σ = 20120201138. Its totient is φ = 20120201136.

The previous prime is 20120201081. The next prime is 20120201149. The reversal of 20120201137 is 73110202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20108374416 + 11826721 = 141804^2 + 3439^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120201137 - 2¹⁹ = 20119676849 is a prime.

It is not a weakly prime, because it can be changed into another prime (20120201737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060100568 + 10060100569.

It is an arithmetic number, because the mean of its divisors is an integer number (10060100569).

Almost surely, 2^20120201137 is an apocalyptic number.

It is an amenable number.

20120201137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120201137 is an equidigital number, since it uses as much as digits as its factorization.

20120201137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 20120201137 its reverse (73110202102), we get a palindrome (93230403239).

The spelling of 20120201137 in words is "twenty billion, one hundred twenty million, two hundred one thousand, one hundred thirty-seven".