102111122011237 has 2 divisors, whose sum is σ = 102111122011238. Its totient is φ = 102111122011236.

The previous prime is 102111122011207. The next prime is 102111122011271. The reversal of 102111122011237 is 732110221111201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99099755272996 + 3011366738241 = 9954886^2 + 1735329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102111122011237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102111122011207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055561005618 + 51055561005619.

It is an arithmetic number, because the mean of its divisors is an integer number (51055561005619).

Almost surely, 2^{102111122011237} is an apocalyptic number.

It is an amenable number.

102111122011237 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111122011237 is an equidigital number, since it uses as much as digits as its factorization.

102111122011237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

Adding to 102111122011237 its reverse (732110221111201), we get a palindrome (834221343122438).

The spelling of 102111122011237 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-two million, eleven thousand, two hundred thirty-seven".