2011520432503 has 4 divisors (see below), whose sum is σ = 2012125768488. Its totient is φ = 2010915096520.

The previous prime is 2011520432479. The next prime is 2011520432533. The reversal of 2011520432503 is 3052340251102.

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 2011520432503 - 2³⁷ = 1874081479031 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 (2011520432533) 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, 302663008 + ... + 302669653.

It is an arithmetic number, because the mean of its divisors is an integer number (503031442122).

Almost surely, 2^{2011520432503} is an apocalyptic number.

2011520432503 is a deficient number, since it is larger than the sum of its proper divisors (605335985).

2011520432503 is an equidigital number, since it uses as much as digits as its factorization.

2011520432503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605335984.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 2011520432503 its reverse (3052340251102), we get a palindrome (5063860683605).

The spelling of 2011520432503 in words is "two trillion, eleven billion, five hundred twenty million, four hundred thirty-two thousand, five hundred three".