23223144552340 has 12 divisors (see below), whose sum is σ = 48768603559956. Its totient is φ = 9289257820928.

The previous prime is 23223144552287. The next prime is 23223144552343. The reversal of 23223144552340 is 4325544132232.

It can be written as a sum of positive squares in 2 ways, for example, as 7933934092176 + 15289210460164 = 2816724^2 + 3910142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23223144552293 and 23223144552302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223144552343) 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, 580578613789 + ... + 580578613828.

It is an arithmetic number, because the mean of its divisors is an integer number (4064050296663).

Almost surely, 2^{23223144552340} is an apocalyptic number.

23223144552340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223144552340 is an abundant number, since it is smaller than the sum of its proper divisors (25545459007616).

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

23223144552340 is a wasteful number, since it uses less digits than its factorization.

23223144552340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161157227626 (or 1161157227624 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 23223144552340 its reverse (4325544132232), we get a palindrome (27548688684572).

The spelling of 23223144552340 in words is "twenty-three trillion, two hundred twenty-three billion, one hundred forty-four million, five hundred fifty-two thousand, three hundred forty".