102112212203123 has 4 divisors (see below), whose sum is σ = 105406154532288. Its totient is φ = 98818269873960.

The previous prime is 102112212203117. The next prime is 102112212203149. The reversal of 102112212203123 is 321302212211201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102112212203123 - 2¹² = 102112212199027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102112212205123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646971164536 + ... + 1646971164597.

It is an arithmetic number, because the mean of its divisors is an integer number (26351538633072).

Almost surely, 2^{102112212203123} is an apocalyptic number.

102112212203123 is a deficient number, since it is larger than the sum of its proper divisors (3293942329165).

102112212203123 is an equidigital number, since it uses as much as digits as its factorization.

102112212203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293942329164.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 102112212203123 its reverse (321302212211201), we get a palindrome (423414424414324).

The spelling of 102112212203123 in words is "one hundred two trillion, one hundred twelve billion, two hundred twelve million, two hundred three thousand, one hundred twenty-three".