2123311212404 has 24 divisors (see below), whose sum is σ = 3773030184000. Its totient is φ = 1045341480960.

The previous prime is 2123311212371. The next prime is 2123311212427. The reversal of 2123311212404 is 4042121133212.

It is a happy number.

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, 4642754 + ... + 5079545.

It is an arithmetic number, because the mean of its divisors is an integer number (157209591000).

Almost surely, 2^{2123311212404} is an apocalyptic number.

It is an amenable number.

2123311212404 is a deficient number, since it is larger than the sum of its proper divisors (1649718971596).

2123311212404 is a wasteful number, since it uses less digits than its factorization.

2123311212404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9723143 (or 9723141 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2123311212404 its reverse (4042121133212), we get a palindrome (6165432345616).

The spelling of 2123311212404 in words is "two trillion, one hundred twenty-three billion, three hundred eleven million, two hundred twelve thousand, four hundred four".