102021020121037 has 2 divisors, whose sum is σ = 102021020121038. Its totient is φ = 102021020121036.

The previous prime is 102021020121011. The next prime is 102021020121047. The reversal of 102021020121037 is 730121020120201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82087840134756 + 19933179986281 = 9060234^2 + 4464659^2 .

It is an emirp because it is prime and its reverse (730121020120201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102021020121037 - 2⁷ = 102021020120909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102021020120999 and 102021020121017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021020121047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010510060518 + 51010510060519.

It is an arithmetic number, because the mean of its divisors is an integer number (51010510060519).

Almost surely, 2^{102021020121037} is an apocalyptic number.

It is an amenable number.

102021020121037 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021020121037 is an equidigital number, since it uses as much as digits as its factorization.

102021020121037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 102021020121037 its reverse (730121020120201), we get a palindrome (832142040241238).

The spelling of 102021020121037 in words is "one hundred two trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, thirty-seven".