2012978503 has 4 divisors (see below), whose sum is σ = 2118924760. Its totient is φ = 1907032248.

The previous prime is 2012978501. The next prime is 2012978509. The reversal of 2012978503 is 3058792102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012978503 - 2¹ = 2012978501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012978501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52973100 + ... + 52973137.

It is an arithmetic number, because the mean of its divisors is an integer number (529731190).

Almost surely, 2^2012978503 is an apocalyptic number.

2012978503 is a deficient number, since it is larger than the sum of its proper divisors (105946257).

2012978503 is a wasteful number, since it uses less digits than its factorization.

2012978503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105946256.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2012978503 is about 44866.2289812728. The cubic root of 2012978503 is about 1262.6404908258.

The spelling of 2012978503 in words is "two billion, twelve million, nine hundred seventy-eight thousand, five hundred three".