220311142 has 24 divisors (see below), whose sum is σ = 342540576. Its totient is φ = 106234128.

The previous prime is 220311139. The next prime is 220311167. The reversal of 220311142 is 241113022.

220311142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475603 + ... + 476065.

It is an arithmetic number, because the mean of its divisors is an integer number (14272524).

Almost surely, 2^220311142 is an apocalyptic number.

220311142 is a deficient number, since it is larger than the sum of its proper divisors (122229434).

220311142 is an equidigital number, since it uses as much as digits as its factorization.

220311142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220311142 is about 14842.8818630346. The cubic root of 220311142 is about 603.9655313429.

Adding to 220311142 its reverse (241113022), we get a palindrome (461424164).

The spelling of 220311142 in words is "two hundred twenty million, three hundred eleven thousand, one hundred forty-two".