23140321440440 has 32 divisors (see below), whose sum is σ = 54806024466000. Its totient is φ = 8768963913984.

The previous prime is 23140321440427. The next prime is 23140321440463. The reversal of 23140321440440 is 4404412304132.

It is a super-3 number, since 3×23140321440440³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23140321440397 and 23140321440406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15223894925 + ... + 15223896444.

Almost surely, 2^{23140321440440} is an apocalyptic number.

23140321440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23140321440440 is an abundant number, since it is smaller than the sum of its proper divisors (31665703025560).

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

23140321440440 is a wasteful number, since it uses less digits than its factorization.

23140321440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30447791399 (or 30447791395 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 23140321440440 its reverse (4404412304132), we get a palindrome (27544733744572).

The spelling of 23140321440440 in words is "twenty-three trillion, one hundred forty billion, three hundred twenty-one million, four hundred forty thousand, four hundred forty".