220311513 has 48 divisors (see below), whose sum is σ = 342890496. Its totient is φ = 136056960.

The previous prime is 220311499. The next prime is 220311527. The reversal of 220311513 is 315113022.

It is an interprime number because it is at equal distance from previous prime (220311499) and next prime (220311527).

It is not a de Polignac number, because 220311513 - 2⁹ = 220311001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220311583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 694831 + ... + 695147.

It is an arithmetic number, because the mean of its divisors is an integer number (7143552).

Almost surely, 2^220311513 is an apocalyptic number.

It is an amenable number.

220311513 is a deficient number, since it is larger than the sum of its proper divisors (122578983).

220311513 is a wasteful number, since it uses less digits than its factorization.

220311513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 220311513 is about 14842.8943606023. The cubic root of 220311513 is about 603.9658703651.

Adding to 220311513 its reverse (315113022), we get a palindrome (535424535).

The spelling of 220311513 in words is "two hundred twenty million, three hundred eleven thousand, five hundred thirteen".