40001311312021 has 8 divisors (see below), whose sum is σ = 40968132246144. Its totient is φ = 39039312428160.

The previous prime is 40001311312019. The next prime is 40001311312031. The reversal of 40001311312021 is 12021311310004.

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

It is a cyclic number.

It is not a de Polignac number, because 40001311312021 - 2¹ = 40001311312019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40001311312021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001311312031) 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, 1205495775 + ... + 1205528956.

It is an arithmetic number, because the mean of its divisors is an integer number (5121016530768).

Almost surely, 2^{40001311312021} is an apocalyptic number.

It is an amenable number.

40001311312021 is a deficient number, since it is larger than the sum of its proper divisors (966820934123).

40001311312021 is a wasteful number, since it uses less digits than its factorization.

40001311312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411025131.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 40001311312021 its reverse (12021311310004), we get a palindrome (52022622622025).

The spelling of 40001311312021 in words is "forty trillion, one billion, three hundred eleven million, three hundred twelve thousand, twenty-one".