102000124123 has 4 divisors (see below), whose sum is σ = 102022031320. Its totient is φ = 101978216928.

The previous prime is 102000124097. The next prime is 102000124147. The reversal of 102000124123 is 321421000201.

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 102000124123 - 2⁵ = 102000124091 is a prime.

It is a super-2 number, since 2×102000124123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102000124097 and 102000124106.

It is not an unprimeable number, because it can be changed into a prime (102000124823) 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, 10946613 + ... + 10955926.

It is an arithmetic number, because the mean of its divisors is an integer number (25505507830).

Almost surely, 2^102000124123 is an apocalyptic number.

102000124123 is a deficient number, since it is larger than the sum of its proper divisors (21907197).

102000124123 is an equidigital number, since it uses as much as digits as its factorization.

102000124123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21907196.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102000124123 its reverse (321421000201), we get a palindrome (423421124324).

The spelling of 102000124123 in words is "one hundred two billion, one hundred twenty-four thousand, one hundred twenty-three".