23133242213520 has 80 divisors (see below), whose sum is σ = 72383266370880. Its totient is φ = 6111211643392.

The previous prime is 23133242213507. The next prime is 23133242213531. The reversal of 23133242213520 is 2531224233132.

It is a tau number, because it is divible by the number of its divisors (80).

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, 450387915 + ... + 450439274.

It is an arithmetic number, because the mean of its divisors is an integer number (904790829636).

Almost surely, 2^{23133242213520} is an apocalyptic number.

23133242213520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133242213520 is an abundant number, since it is smaller than the sum of its proper divisors (49250024157360).

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

23133242213520 is a wasteful number, since it uses less digits than its factorization.

23133242213520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900827312 (or 900827306 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 23133242213520 its reverse (2531224233132), we get a palindrome (25664466446652).

The spelling of 23133242213520 in words is "twenty-three trillion, one hundred thirty-three billion, two hundred forty-two million, two hundred thirteen thousand, five hundred twenty".