2012023123404 has 120 divisors (see below), whose sum is σ = 5604220184640. Its totient is φ = 561494479392.

The previous prime is 2012023123303. The next prime is 2012023123417. The reversal of 2012023123404 is 4043213202102.

It is a happy number.

It is a super-2 number, since 2×2012023123404² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 426907 + ... + 2050925.

It is an arithmetic number, because the mean of its divisors is an integer number (46701834872).

Almost surely, 2^{2012023123404} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012023123404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802110092320).

2012023123404 is an abundant number, since it is smaller than the sum of its proper divisors (3592197061236).

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

2012023123404 is a wasteful number, since it uses less digits than its factorization.

2012023123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624097 (or 1624074 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2012023123404 its reverse (4043213202102), we get a palindrome (6055236325506).

The spelling of 2012023123404 in words is "two trillion, twelve billion, twenty-three million, one hundred twenty-three thousand, four hundred four".