102121001237 has 2 divisors, whose sum is σ = 102121001238. Its totient is φ = 102121001236.

The previous prime is 102121001201. The next prime is 102121001239. The reversal of 102121001237 is 732100121201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97249798801 + 4871202436 = 311849^2 + 69794^2 .

It is a cyclic number.

It is not a de Polignac number, because 102121001237 - 2¹⁴ = 102120984853 is a prime.

Together with 102121001239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121001239) 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, 51060500618 + 51060500619.

It is an arithmetic number, because the mean of its divisors is an integer number (51060500619).

Almost surely, 2^102121001237 is an apocalyptic number.

It is an amenable number.

102121001237 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121001237 is an equidigital number, since it uses as much as digits as its factorization.

102121001237 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 20.

Adding to 102121001237 its reverse (732100121201), we get a palindrome (834221122438).

The spelling of 102121001237 in words is "one hundred two billion, one hundred twenty-one million, one thousand, two hundred thirty-seven".