220311434100 has 72 divisors (see below), whose sum is σ = 637500565408. Its totient is φ = 58743619200.

The previous prime is 220311434093. The next prime is 220311434131. The reversal of 220311434100 is 1434113022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3362655 + ... + 3427545.

Almost surely, 2^220311434100 is an apocalyptic number.

220311434100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220311434100 is an abundant number, since it is smaller than the sum of its proper divisors (417189131308).

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

220311434100 is a wasteful number, since it uses less digits than its factorization.

220311434100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76225 (or 76218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220311434100 its reverse (1434113022), we get a palindrome (221745547122).

The spelling of 220311434100 in words is "two hundred twenty billion, three hundred eleven million, four hundred thirty-four thousand, one hundred".