2312223345520 has 40 divisors (see below), whose sum is σ = 5864639214960. Its totient is φ = 840808488960.

The previous prime is 2312223345499. The next prime is 2312223345521. The reversal of 2312223345520 is 255433222132.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312223345521) by changing a digit.

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, 1313762385 + ... + 1313764144.

It is an arithmetic number, because the mean of its divisors is an integer number (146615980374).

Almost surely, 2^{2312223345520} is an apocalyptic number.

2312223345520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312223345520 is an abundant number, since it is smaller than the sum of its proper divisors (3552415869440).

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

2312223345520 is a wasteful number, since it uses less digits than its factorization.

2312223345520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627526553 (or 2627526547 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 2312223345520 its reverse (255433222132), we get a palindrome (2567656567652).

The spelling of 2312223345520 in words is "two trillion, three hundred twelve billion, two hundred twenty-three million, three hundred forty-five thousand, five hundred twenty".