40313453331521 has 8 divisors (see below), whose sum is σ = 42509531407200. Its totient is φ = 38124806993280.

The previous prime is 40313453331517. The next prime is 40313453331539. The reversal of 40313453331521 is 12513335431304.

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

It is not a de Polignac number, because 40313453331521 - 2² = 40313453331517 is a prime.

It is a super-2 number, since 2×40313453331521² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40313453331421) 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, 1857923216 + ... + 1857944913.

It is an arithmetic number, because the mean of its divisors is an integer number (5313691425900).

Almost surely, 2^{40313453331521} is an apocalyptic number.

It is an amenable number.

40313453331521 is a deficient number, since it is larger than the sum of its proper divisors (2196078075679).

40313453331521 is a wasteful number, since it uses less digits than its factorization.

40313453331521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715868719.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 40313453331521 its reverse (12513335431304), we get a palindrome (52826788762825).

The spelling of 40313453331521 in words is "forty trillion, three hundred thirteen billion, four hundred fifty-three million, three hundred thirty-one thousand, five hundred twenty-one".