23403365534040 has 64 divisors (see below), whose sum is σ = 70211650145760. Its totient is φ = 6240759383040.

The previous prime is 23403365533973. The next prime is 23403365534047. The reversal of 23403365534040 is 4043556330432.

It is a junction number, because it is equal to n+sod(n) for n = 23403365533983 and 23403365534001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403365534047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3346380 + ... + 7616100.

Almost surely, 2^{23403365534040} is an apocalyptic number.

23403365534040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23403365534040 is an abundant number, since it is smaller than the sum of its proper divisors (46808284611720).

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

23403365534040 is a wasteful number, since it uses less digits than its factorization.

23403365534040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315412 (or 4315408 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 42.

The spelling of 23403365534040 in words is "twenty-three trillion, four hundred three billion, three hundred sixty-five million, five hundred thirty-four thousand, forty".