2123112300000 has 144 divisors (see below), whose sum is σ = 6966017365104. Its totient is φ = 566163200000.

The previous prime is 2123112299977. The next prime is 2123112300007. The reversal of 2123112300000 is 32113212.

It is a super-2 number, since 2×2123112300000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123112300007) 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, 3238521 + ... + 3838520.

It is an arithmetic number, because the mean of its divisors is an integer number (48375120591).

Almost surely, 2^{2123112300000} is an apocalyptic number.

2123112300000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123112300000 is an abundant number, since it is smaller than the sum of its proper divisors (4842905065104).

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

2123112300000 is an frugal number, since it uses more digits than its factorization.

2123112300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077079 (or 7077051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2123112300000 its reverse (32113212), we get a palindrome (2123144413212).

The spelling of 2123112300000 in words is "two trillion, one hundred twenty-three billion, one hundred twelve million, three hundred thousand".