2001423012 has 12 divisors (see below), whose sum is σ = 4669987056. Its totient is φ = 667141000.

The previous prime is 2001423001. The next prime is 2001423029. The reversal of 2001423012 is 2103241002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2001422982 and 2001423000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83392614 + ... + 83392637.

It is an arithmetic number, because the mean of its divisors is an integer number (389165588).

Almost surely, 2^2001423012 is an apocalyptic number.

It is an amenable number.

2001423012 is an abundant number, since it is smaller than the sum of its proper divisors (2668564044).

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

2001423012 is a wasteful number, since it uses less digits than its factorization.

2001423012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166785258 (or 166785256 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2001423012 is about 44737.2664788541. The cubic root of 2001423012 is about 1260.2197928491.

Adding to 2001423012 its reverse (2103241002), we get a palindrome (4104664014).

The spelling of 2001423012 in words is "two billion, one million, four hundred twenty-three thousand, twelve".