2012123454032 has 20 divisors (see below), whose sum is σ = 3898635483636. Its totient is φ = 1006023974400.

The previous prime is 2012123454031. The next prime is 2012123454067. The reversal of 2012123454032 is 2304543212102.

It can be written as a sum of positive squares in 2 ways, for example, as 272404661776 + 1739718792256 = 521924^2 + 1318984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2012123453986 and 2012123454004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012123454031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917323 + ... + 2774954.

Almost surely, 2^{2012123454032} is an apocalyptic number.

It is an amenable number.

2012123454032 is a deficient number, since it is larger than the sum of its proper divisors (1886512029604).

2012123454032 is a wasteful number, since it uses less digits than its factorization.

2012123454032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719086 (or 4719080 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 2012123454032 its reverse (2304543212102), we get a palindrome (4316666666134).

The spelling of 2012123454032 in words is "two trillion, twelve billion, one hundred twenty-three million, four hundred fifty-four thousand, thirty-two".