2120673015503 has 16 divisors (see below), whose sum is σ = 2639157504000. Its totient is φ = 1662669221472.

The previous prime is 2120673015451. The next prime is 2120673015523. The reversal of 2120673015503 is 3055103760212.

It is not a de Polignac number, because 2120673015503 - 2²⁰ = 2120671966927 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 (2120673015523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274908383 + ... + 274916096.

It is an arithmetic number, because the mean of its divisors is an integer number (164947344000).

Almost surely, 2^{2120673015503} is an apocalyptic number.

2120673015503 is a deficient number, since it is larger than the sum of its proper divisors (518484488497).

2120673015503 is a wasteful number, since it uses less digits than its factorization.

2120673015503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549824534.

The product of its (nonzero) digits is 37800, while the sum is 35.

Adding to 2120673015503 its reverse (3055103760212), we get a palindrome (5175776775715).

The spelling of 2120673015503 in words is "two trillion, one hundred twenty billion, six hundred seventy-three million, fifteen thousand, five hundred three".