123103121204004 has 192 divisors, whose sum is σ = 319423832232960. Its totient is φ = 36755684513280.

The previous prime is 123103121203961. The next prime is 123103121204009. The reversal of 123103121204004 is 400402121301321.

It is not an unprimeable number, because it can be changed into a prime (123103121204009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41270367 + ... + 44152569.

It is an arithmetic number, because the mean of its divisors is an integer number (1663665792880).

Almost surely, 2^{123103121204004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123103121204004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159711916116480).

123103121204004 is an abundant number, since it is smaller than the sum of its proper divisors (196320711028956).

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

123103121204004 is a wasteful number, since it uses less digits than its factorization.

123103121204004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882410 (or 2882408 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123103121204004 its reverse (400402121301321), we get a palindrome (523505242505325).

The spelling of 123103121204004 in words is "one hundred twenty-three trillion, one hundred three billion, one hundred twenty-one million, two hundred four thousand, four".