40003230021 has 8 divisors (see below), whose sum is σ = 56144884320. Its totient is φ = 25265197872.

The previous prime is 40003230013. The next prime is 40003230031. The reversal of 40003230021 is 12003230004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40003230021 - 2³ = 40003230013 is a prime.

It is a super-2 number, since 2×40003230021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003230011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350905470 + ... + 350905583.

It is an arithmetic number, because the mean of its divisors is an integer number (7018110540).

Almost surely, 2^40003230021 is an apocalyptic number.

It is an amenable number.

40003230021 is a deficient number, since it is larger than the sum of its proper divisors (16141654299).

40003230021 is a wasteful number, since it uses less digits than its factorization.

40003230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701811075.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 40003230021 its reverse (12003230004), we get a palindrome (52006460025).

The spelling of 40003230021 in words is "forty billion, three million, two hundred thirty thousand, twenty-one".