20223113515 has 32 divisors (see below), whose sum is σ = 27654898176. Its totient is φ = 14052994560.

The previous prime is 20223113513. The next prime is 20223113549. The reversal of 20223113515 is 51531132202.

It is not a de Polignac number, because 20223113515 - 2¹ = 20223113513 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 20223113515.

It is not an unprimeable number, because it can be changed into a prime (20223113513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1227724 + ... + 1244086.

It is an arithmetic number, because the mean of its divisors is an integer number (864215568).

Almost surely, 2^20223113515 is an apocalyptic number.

20223113515 is a deficient number, since it is larger than the sum of its proper divisors (7431784661).

20223113515 is a wasteful number, since it uses less digits than its factorization.

20223113515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17379.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 20223113515 its reverse (51531132202), we get a palindrome (71754245717).

The spelling of 20223113515 in words is "twenty billion, two hundred twenty-three million, one hundred thirteen thousand, five hundred fifteen".