20020215513 has 8 divisors (see below), whose sum is σ = 26787945568. Its totient is φ = 13299647904.

The previous prime is 20020215487. The next prime is 20020215521. The reversal of 20020215513 is 31551202002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20020215513 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 20020215513.

It is not an unprimeable number, because it can be changed into a prime (20020215713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11789620 + ... + 11791317.

It is an arithmetic number, because the mean of its divisors is an integer number (3348493196).

Almost surely, 2^20020215513 is an apocalyptic number.

It is an amenable number.

20020215513 is a deficient number, since it is larger than the sum of its proper divisors (6767730055).

20020215513 is a wasteful number, since it uses less digits than its factorization.

20020215513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23581223.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20020215513 its reverse (31551202002), we get a palindrome (51571417515).

The spelling of 20020215513 in words is "twenty billion, twenty million, two hundred fifteen thousand, five hundred thirteen".