102112321103123 has 4 divisors (see below), whose sum is σ = 102676477573488. Its totient is φ = 101548164632760.

The previous prime is 102112321103101. The next prime is 102112321103131. The reversal of 102112321103123 is 321301123211201.

It is a happy number.

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 102112321103123 - 2¹⁴ = 102112321086739 is a prime.

It is a super-2 number, since 2×102112321103123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102112321303123) 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, 282078234911 + ... + 282078235272.

It is an arithmetic number, because the mean of its divisors is an integer number (25669119393372).

Almost surely, 2^{102112321103123} is an apocalyptic number.

102112321103123 is a deficient number, since it is larger than the sum of its proper divisors (564156470365).

102112321103123 is an equidigital number, since it uses as much as digits as its factorization.

102112321103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564156470364.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 102112321103123 its reverse (321301123211201), we get a palindrome (423413444314324).

The spelling of 102112321103123 in words is "one hundred two trillion, one hundred twelve billion, three hundred twenty-one million, one hundred three thousand, one hundred twenty-three".