220123513 has 16 divisors (see below), whose sum is σ = 230492160. Its totient is φ = 210056976.

The previous prime is 220123499. The next prime is 220123537. The reversal of 220123513 is 315321022.

It is a cyclic number.

It is not a de Polignac number, because 220123513 - 2¹³ = 220115321 is a prime.

It is a super-2 number, since 2×220123513² = 96908721950922338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220123583) 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, 451756 + ... + 452242.

It is an arithmetic number, because the mean of its divisors is an integer number (14405760).

Almost surely, 2^220123513 is an apocalyptic number.

It is an amenable number.

220123513 is a deficient number, since it is larger than the sum of its proper divisors (10368647).

220123513 is a wasteful number, since it uses less digits than its factorization.

220123513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 220123513 is about 14836.5600123479. The cubic root of 220123513 is about 603.7940259693.

Adding to 220123513 its reverse (315321022), we get a palindrome (535444535).

The spelling of 220123513 in words is "two hundred twenty million, one hundred twenty-three thousand, five hundred thirteen".