23231104431440 has 80 divisors (see below), whose sum is σ = 55119679146000. Its totient is φ = 9103636647936.

The previous prime is 23231104431427. The next prime is 23231104431463. The reversal of 23231104431440 is 4413440113232.

It can be written as a sum of positive squares in 8 ways, for example, as 1068213199936 + 22162891231504 = 1033544^2 + 4707748^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23231104431397 and 23231104431406.

It is a congruent number.

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, 12478595 + ... + 14218914.

It is an arithmetic number, because the mean of its divisors is an integer number (688995989325).

Almost surely, 2^{23231104431440} is an apocalyptic number.

23231104431440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231104431440 is an abundant number, since it is smaller than the sum of its proper divisors (31888574714560).

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

23231104431440 is a wasteful number, since it uses less digits than its factorization.

23231104431440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26697744 (or 26697738 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 23231104431440 its reverse (4413440113232), we get a palindrome (27644544544672).

The spelling of 23231104431440 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred four million, four hundred thirty-one thousand, four hundred forty".