40204102412321 has 8 divisors (see below), whose sum is σ = 40246931324160. Its totient is φ = 40161274848352.

The previous prime is 40204102412303. The next prime is 40204102412323. The reversal of 40204102412321 is 12321420140204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40204102412321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40204102412323) 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, 66369416 + ... + 66972438.

It is an arithmetic number, because the mean of its divisors is an integer number (5030866415520).

Almost surely, 2^{40204102412321} is an apocalyptic number.

It is an amenable number.

40204102412321 is a deficient number, since it is larger than the sum of its proper divisors (42828911839).

40204102412321 is an equidigital number, since it uses as much as digits as its factorization.

40204102412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673935.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 40204102412321 its reverse (12321420140204), we get a palindrome (52525522552525).

The spelling of 40204102412321 in words is "forty trillion, two hundred four billion, one hundred two million, four hundred twelve thousand, three hundred twenty-one".