123011330004 has 72 divisors (see below), whose sum is σ = 313165125000. Its totient is φ = 40711290624.

The previous prime is 123011330003. The next prime is 123011330059. The reversal of 123011330004 is 400033110321.

It can be written as a sum of positive squares in 4 ways, for example, as 3397724100 + 119613605904 = 58290^2 + 345852^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011330003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21394122 + ... + 21399870.

It is an arithmetic number, because the mean of its divisors is an integer number (4349515625).

Almost surely, 2^123011330004 is an apocalyptic number.

It is an amenable number.

123011330004 is an abundant number, since it is smaller than the sum of its proper divisors (190153794996).

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

123011330004 is a wasteful number, since it uses less digits than its factorization.

123011330004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9897 (or 9892 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123011330004 its reverse (400033110321), we get a palindrome (523044440325).

The spelling of 123011330004 in words is "one hundred twenty-three billion, eleven million, three hundred thirty thousand, four".