123012011104 has 48 divisors (see below), whose sum is σ = 249781807296. Its totient is φ = 59601280000.

The previous prime is 123012011099. The next prime is 123012011117. The reversal of 123012011104 is 401110210321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252997 + ... + 556804.

It is an arithmetic number, because the mean of its divisors is an integer number (5203787652).

Almost surely, 2^123012011104 is an apocalyptic number.

It is an amenable number.

123012011104 is an abundant number, since it is smaller than the sum of its proper divisors (126769796192).

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

123012011104 is a wasteful number, since it uses less digits than its factorization.

123012011104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809959 (or 809951 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123012011104 its reverse (401110210321), we get a palindrome (524122221425).

The spelling of 123012011104 in words is "one hundred twenty-three billion, twelve million, eleven thousand, one hundred four".