23005512212340 has 48 divisors (see below), whose sum is σ = 73617639080832. Its totient is φ = 5258402791296.

The previous prime is 23005512212299. The next prime is 23005512212341. The reversal of 23005512212340 is 4321221550032.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23005512212298 and 23005512212307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23005512212341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27387514119 + ... + 27387514958.

It is an arithmetic number, because the mean of its divisors is an integer number (1533700814184).

Almost surely, 2^{23005512212340} is an apocalyptic number.

23005512212340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23005512212340 is an abundant number, since it is smaller than the sum of its proper divisors (50612126868492).

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

23005512212340 is a wasteful number, since it uses less digits than its factorization.

23005512212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54775029096 (or 54775029094 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 23005512212340 its reverse (4321221550032), we get a palindrome (27326733762372).

The spelling of 23005512212340 in words is "twenty-three trillion, five billion, five hundred twelve million, two hundred twelve thousand, three hundred forty".