1234100123 has 4 divisors (see below), whose sum is σ = 1264200168. Its totient is φ = 1204000080.

The previous prime is 1234100083. The next prime is 1234100137. The reversal of 1234100123 is 3210014321.

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 1234100123 - 2¹⁰ = 1234099099 is a prime.

It is a super-2 number, since 2×1234100123² = 3046006227177230258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234100143) 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, 15049961 + ... + 15050042.

It is an arithmetic number, because the mean of its divisors is an integer number (316050042).

Almost surely, 2^1234100123 is an apocalyptic number.

1234100123 is a deficient number, since it is larger than the sum of its proper divisors (30100045).

1234100123 is an equidigital number, since it uses as much as digits as its factorization.

1234100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30100044.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1234100123 is about 35129.7612146738. The cubic root of 1234100123 is about 1072.6304753031.

Adding to 1234100123 its reverse (3210014321), we get a palindrome (4444114444).

The spelling of 1234100123 in words is "one billion, two hundred thirty-four million, one hundred thousand, one hundred twenty-three".