23531442360040 has 64 divisors (see below), whose sum is σ = 53967555729360. Its totient is φ = 9232346511360.

The previous prime is 23531442359969. The next prime is 23531442360089. The reversal of 23531442360040 is 4006324413532.

It can be written as a sum of positive squares in 8 ways, for example, as 8558210895364 + 14973231464676 = 2925442^2 + 3869526^2 .

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, 21733119 + ... + 22790158.

Almost surely, 2^{23531442360040} is an apocalyptic number.

23531442360040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23531442360040 is an abundant number, since it is smaller than the sum of its proper divisors (30436113369320).

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

23531442360040 is a wasteful number, since it uses less digits than its factorization.

23531442360040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44523542 (or 44523538 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 23531442360040 its reverse (4006324413532), we get a palindrome (27537766773572).

The spelling of 23531442360040 in words is "twenty-three trillion, five hundred thirty-one billion, four hundred forty-two million, three hundred sixty thousand, forty".