23311010340240 has 160 divisors (see below), whose sum is σ = 82631543623680. Its totient is φ = 5325394540032.

The previous prime is 23311010340227. The next prime is 23311010340281. The reversal of 23311010340240 is 4204301011332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23311010340240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 535564 + ... + 6849003.

It is an arithmetic number, because the mean of its divisors is an integer number (516447147648).

Almost surely, 2^{23311010340240} is an apocalyptic number.

23311010340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23311010340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41315771811840).

23311010340240 is an abundant number, since it is smaller than the sum of its proper divisors (59320533283440).

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

23311010340240 is a wasteful number, since it uses less digits than its factorization.

23311010340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7386469 (or 7386463 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23311010340240 its reverse (4204301011332), we get a palindrome (27515311351572).

The spelling of 23311010340240 in words is "twenty-three trillion, three hundred eleven billion, ten million, three hundred forty thousand, two hundred forty".