102120986004493 has 2 divisors, whose sum is σ = 102120986004494. Its totient is φ = 102120986004492.

The previous prime is 102120986004451. The next prime is 102120986004523. The reversal of 102120986004493 is 394400689021201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97119487626084 + 5001498378409 = 9854922^2 + 2236403^2 .

It is a cyclic number.

It is not a de Polignac number, because 102120986004493 - 2⁴¹ = 99921962748941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102120986004403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060493002246 + 51060493002247.

It is an arithmetic number, because the mean of its divisors is an integer number (51060493002247).

Almost surely, 2^{102120986004493} is an apocalyptic number.

It is an amenable number.

102120986004493 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120986004493 is an equidigital number, since it uses as much as digits as its factorization.

102120986004493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 102120986004493 in words is "one hundred two trillion, one hundred twenty billion, nine hundred eighty-six million, four thousand, four hundred ninety-three".