102120240102 has 32 divisors (see below), whose sum is σ = 208610698752. Its totient is φ = 33311881824.

The previous prime is 102120240071. The next prime is 102120240109. The reversal of 102120240102 is 201042021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120240109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3251908 + ... + 3283160.

It is an arithmetic number, because the mean of its divisors is an integer number (6519084336).

Almost surely, 2^102120240102 is an apocalyptic number.

102120240102 is an abundant number, since it is smaller than the sum of its proper divisors (106490458650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120240102 is a wasteful number, since it uses less digits than its factorization.

102120240102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42892.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102120240102 its reverse (201042021201), we get a palindrome (303162261303).

The spelling of 102120240102 in words is "one hundred two billion, one hundred twenty million, two hundred forty thousand, one hundred two".