102121312113 has 8 divisors (see below), whose sum is σ = 151290832800. Its totient is φ = 68080874724.

The previous prime is 102121312103. The next prime is 102121312129. The reversal of 102121312113 is 311213121201.

It is not a de Polignac number, because 102121312113 - 2⁶ = 102121312049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121312103) 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 7 ways as a sum of consecutive naturals, for example, 1891135383 + ... + 1891135436.

It is an arithmetic number, because the mean of its divisors is an integer number (18911354100).

Almost surely, 2^102121312113 is an apocalyptic number.

It is an amenable number.

102121312113 is a deficient number, since it is larger than the sum of its proper divisors (49169520687).

102121312113 is an equidigital number, since it uses as much as digits as its factorization.

102121312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782270828 (or 3782270822 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 102121312113 its reverse (311213121201), we get a palindrome (413334433314).

The spelling of 102121312113 in words is "one hundred two billion, one hundred twenty-one million, three hundred twelve thousand, one hundred thirteen".