123111001104 has 160 divisors (see below), whose sum is σ = 400977502464. Its totient is φ = 31676866560.

The previous prime is 123111000977. The next prime is 123111001109. The reversal of 123111001104 is 401100111321.

It is not an unprimeable number, because it can be changed into a prime (123111001109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164629 + ... + 522804.

Almost surely, 2^123111001104 is an apocalyptic number.

123111001104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123111001104 is an abundant number, since it is smaller than the sum of its proper divisors (277866501360).

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

123111001104 is a wasteful number, since it uses less digits than its factorization.

123111001104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687505 (or 687499 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 123111001104 its reverse (401100111321), we get a palindrome (524211112425).

The spelling of 123111001104 in words is "one hundred twenty-three billion, one hundred eleven million, one thousand, one hundred four".