2311032404220 has 48 divisors (see below), whose sum is σ = 6559533083040. Its totient is φ = 607833179136.

The previous prime is 2311032404207. The next prime is 2311032404231. The reversal of 2311032404220 is 224042301132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263812105 + ... + 263820864.

It is an arithmetic number, because the mean of its divisors is an integer number (136656939230).

Almost surely, 2^{2311032404220} is an apocalyptic number.

2311032404220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311032404220 is an abundant number, since it is smaller than the sum of its proper divisors (4248500678820).

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

2311032404220 is a wasteful number, since it uses less digits than its factorization.

2311032404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527633054 (or 527633052 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2311032404220 its reverse (224042301132), we get a palindrome (2535074705352).

The spelling of 2311032404220 in words is "two trillion, three hundred eleven billion, thirty-two million, four hundred four thousand, two hundred twenty".