123103100011 has 4 divisors (see below), whose sum is σ = 124486281000. Its totient is φ = 121719919024.

The previous prime is 123103099979. The next prime is 123103100023. The reversal of 123103100011 is 110001301321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110001301321 = 39989 ⋅2750789.

It is a cyclic number.

It is not a de Polignac number, because 123103100011 - 2⁵ = 123103099979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123103099964 and 123103100000.

It is not an unprimeable number, because it can be changed into a prime (123103100311) 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, 691590361 + ... + 691590538.

It is an arithmetic number, because the mean of its divisors is an integer number (31121570250).

Almost surely, 2^123103100011 is an apocalyptic number.

123103100011 is a deficient number, since it is larger than the sum of its proper divisors (1383180989).

123103100011 is an equidigital number, since it uses as much as digits as its factorization.

123103100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383180988.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 123103100011 its reverse (110001301321), we get a palindrome (233104401332).

The spelling of 123103100011 in words is "one hundred twenty-three billion, one hundred three million, one hundred thousand, eleven".