220311203140 has 24 divisors (see below), whose sum is σ = 528746887872. Its totient is φ = 75535269600.

The previous prime is 220311203137. The next prime is 220311203159. The reversal of 220311203140 is 41302113022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786825586 + ... + 786825865.

It is an arithmetic number, because the mean of its divisors is an integer number (22031120328).

Almost surely, 2^220311203140 is an apocalyptic number.

220311203140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220311203140 is an abundant number, since it is smaller than the sum of its proper divisors (308435684732).

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

220311203140 is a wasteful number, since it uses less digits than its factorization.

220311203140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573651467 (or 1573651465 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 220311203140 its reverse (41302113022), we get a palindrome (261613316162).

The spelling of 220311203140 in words is "two hundred twenty billion, three hundred eleven million, two hundred three thousand, one hundred forty".