20242113515 has 32 divisors (see below), whose sum is σ = 26518168320. Its totient is φ = 14743213056.

The previous prime is 20242113511. The next prime is 20242113553. The reversal of 20242113515 is 51531124202.

It is not a de Polignac number, because 20242113515 - 2² = 20242113511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20242113511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7459799 + ... + 7462511.

It is an arithmetic number, because the mean of its divisors is an integer number (828692760).

Almost surely, 2^20242113515 is an apocalyptic number.

20242113515 is a deficient number, since it is larger than the sum of its proper divisors (6276054805).

20242113515 is a wasteful number, since it uses less digits than its factorization.

20242113515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20242113515 its reverse (51531124202), we get a palindrome (71773237717).

The spelling of 20242113515 in words is "twenty billion, two hundred forty-two million, one hundred thirteen thousand, five hundred fifteen".