2533513523123 has 4 divisors (see below), whose sum is σ = 2763832934328. Its totient is φ = 2303194111920.

The previous prime is 2533513523117. The next prime is 2533513523137. The reversal of 2533513523123 is 3213253153352.

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 2533513523123 - 2⁶ = 2533513523059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2533513523623) 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, 115159705586 + ... + 115159705607.

It is an arithmetic number, because the mean of its divisors is an integer number (690958233582).

Almost surely, 2^{2533513523123} is an apocalyptic number.

2533513523123 is a deficient number, since it is larger than the sum of its proper divisors (230319411205).

2533513523123 is a wasteful number, since it uses less digits than its factorization.

2533513523123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230319411204.

The product of its digits is 243000, while the sum is 38.

Adding to 2533513523123 its reverse (3213253153352), we get a palindrome (5746766676475).

The spelling of 2533513523123 in words is "two trillion, five hundred thirty-three billion, five hundred thirteen million, five hundred twenty-three thousand, one hundred twenty-three".