3031140220 has 12 divisors (see below), whose sum is σ = 6365394504. Its totient is φ = 1212456080.

The previous prime is 3031140199. The next prime is 3031140221. The reversal of 3031140220 is 220411303.

It is a happy number.

It is a super-2 number, since 2×3031140220² = 18375622066603296800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3031140194 and 3031140203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031140221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75778486 + ... + 75778525.

It is an arithmetic number, because the mean of its divisors is an integer number (530449542).

Almost surely, 2^3031140220 is an apocalyptic number.

It is an amenable number.

3031140220 is an abundant number, since it is smaller than the sum of its proper divisors (3334254284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3031140220 is a wasteful number, since it uses less digits than its factorization.

3031140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151557020 (or 151557018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3031140220 is about 55055.7918842332. The cubic root of 3031140220 is about 1447.2226216825. Note that the first 3 decimals are identical.

Adding to 3031140220 its reverse (220411303), we get a palindrome (3251551523).

The spelling of 3031140220 in words is "three billion, thirty-one million, one hundred forty thousand, two hundred twenty".