2123312000 has 64 divisors (see below), whose sum is σ = 5279124240. Its totient is φ = 849318400.

The previous prime is 2123311987. The next prime is 2123312003. The reversal of 2123312000 is 2133212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123312003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50354 + ... + 82353.

Almost surely, 2^2123312000 is an apocalyptic number.

2123312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123312000 is an abundant number, since it is smaller than the sum of its proper divisors (3155812240).

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

2123312000 is an equidigital number, since it uses as much as digits as its factorization.

2123312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132736 (or 132714 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2123312000 is about 46079.4097184415. The cubic root of 2123312000 is about 1285.3002876364.

Adding to 2123312000 its reverse (2133212), we get a palindrome (2125445212).

It can be divided in two parts, 21233 and 12000, that added together give a palindrome (33233).

The spelling of 2123312000 in words is "two billion, one hundred twenty-three million, three hundred twelve thousand".