20003513142467 has 4 divisors (see below), whose sum is σ = 20277533870520. Its totient is φ = 19729492414416.

The previous prime is 20003513142443. The next prime is 20003513142541. The reversal of 20003513142467 is 76424131530002.

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 20003513142467 - 2²⁰ = 20003512093891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20003513142467.

It is not an unprimeable number, because it can be changed into a prime (20003513142427) 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, 137010363917 + ... + 137010364062.

It is an arithmetic number, because the mean of its divisors is an integer number (5069383467630).

Almost surely, 2^{20003513142467} is an apocalyptic number.

20003513142467 is a deficient number, since it is larger than the sum of its proper divisors (274020728053).

20003513142467 is an equidigital number, since it uses as much as digits as its factorization.

20003513142467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274020728052.

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 20003513142467 its reverse (76424131530002), we get a palindrome (96427644672469).

The spelling of 20003513142467 in words is "twenty trillion, three billion, five hundred thirteen million, one hundred forty-two thousand, four hundred sixty-seven".