123031200103 has 4 divisors (see below), whose sum is σ = 140607085840. Its totient is φ = 105455314368.

The previous prime is 123031200101. The next prime is 123031200107. The reversal of 123031200103 is 301002130321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301002130321 = 197347 ⋅1525243.

It is a cyclic number.

It is not a de Polignac number, because 123031200103 - 2¹ = 123031200101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8787942858 + ... + 8787942871.

It is an arithmetic number, because the mean of its divisors is an integer number (35151771460).

Almost surely, 2^123031200103 is an apocalyptic number.

123031200103 is a deficient number, since it is larger than the sum of its proper divisors (17575885737).

123031200103 is an equidigital number, since it uses as much as digits as its factorization.

123031200103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17575885736.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123031200103 its reverse (301002130321), we get a palindrome (424033330424).

The spelling of 123031200103 in words is "one hundred twenty-three billion, thirty-one million, two hundred thousand, one hundred three".