40323421024433 has 4 divisors (see below), whose sum is σ = 40445244049008. Its totient is φ = 40201597999860.

The previous prime is 40323421024423. The next prime is 40323421024499. The reversal of 40323421024433 is 33442012432304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40323421024433 - 2⁴ = 40323421024417 is a prime.

It is a super-2 number, since 2×40323421024433² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40323421024393 and 40323421024402.

It is not an unprimeable number, because it can be changed into a prime (40323421024423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60911511791 + ... + 60911512452.

It is an arithmetic number, because the mean of its divisors is an integer number (10111311012252).

Almost surely, 2^{40323421024433} is an apocalyptic number.

It is an amenable number.

40323421024433 is a deficient number, since it is larger than the sum of its proper divisors (121823024575).

40323421024433 is a wasteful number, since it uses less digits than its factorization.

40323421024433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121823024574.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40323421024433 its reverse (33442012432304), we get a palindrome (73765433456737).

The spelling of 40323421024433 in words is "forty trillion, three hundred twenty-three billion, four hundred twenty-one million, twenty-four thousand, four hundred thirty-three".