123403400111 has 8 divisors (see below), whose sum is σ = 128515464000. Its totient is φ = 118348454560.

The previous prime is 123403400093. The next prime is 123403400119. The reversal of 123403400111 is 111004304321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123403400111 - 2¹⁰ = 123403399087 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 (123403400119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14275175 + ... + 14283816.

It is an arithmetic number, because the mean of its divisors is an integer number (16064433000).

Almost surely, 2^123403400111 is an apocalyptic number.

123403400111 is a deficient number, since it is larger than the sum of its proper divisors (5112063889).

123403400111 is a wasteful number, since it uses less digits than its factorization.

123403400111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28559169.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123403400111 its reverse (111004304321), we get a palindrome (234407704432).

The spelling of 123403400111 in words is "one hundred twenty-three billion, four hundred three million, four hundred thousand, one hundred eleven".