23351240000 has 280 divisors, whose sum is σ = 64120824768. Its totient is φ = 8363520000.

The previous prime is 23351239973. The next prime is 23351240021. The reversal of 23351240000 is 4215332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32119637 + ... + 32120363.

Almost surely, 2^23351240000 is an apocalyptic number.

23351240000 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 23351240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32060412384).

23351240000 is an abundant number, since it is smaller than the sum of its proper divisors (40769584768).

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

23351240000 is an equidigital number, since it uses as much as digits as its factorization.

23351240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 23351240000 its reverse (4215332), we get a palindrome (23355455332).

The spelling of 23351240000 in words is "twenty-three billion, three hundred fifty-one million, two hundred forty thousand".