2123544012 has 24 divisors (see below), whose sum is σ = 5022813936. Its totient is φ = 698151168.

The previous prime is 2123543963. The next prime is 2123544061. The reversal of 2123544012 is 2104453212.

It is an interprime number because it is at equal distance from previous prime (2123543963) and next prime (2123544061).

It is a super-2 number, since 2×2123544012² = 9018878341802112288, which contains 22 as substring.

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, 1211193 + ... + 1212944.

It is an arithmetic number, because the mean of its divisors is an integer number (209283914).

Almost surely, 2^2123544012 is an apocalyptic number.

It is an amenable number.

2123544012 is an abundant number, since it is smaller than the sum of its proper divisors (2899269924).

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

2123544012 is a wasteful number, since it uses less digits than its factorization.

2123544012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424217 (or 2424215 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2123544012 is about 46081.9271732422. The cubic root of 2123544012 is about 1285.3471003877.

Adding to 2123544012 its reverse (2104453212), we get a palindrome (4227997224).

The spelling of 2123544012 in words is "two billion, one hundred twenty-three million, five hundred forty-four thousand, twelve".