40511220213321 has 72 divisors (see below), whose sum is σ = 69127131861216. Its totient is φ = 22662606021120.

The previous prime is 40511220213293. The next prime is 40511220213329. The reversal of 40511220213321 is 12331202211504.

It is a happy number.

40511220213321 is a `hidden beast` number, since 4 + 0 + 5 + 1 + 122 + 0 + 213 + 321 = 666.

It is not a de Polignac number, because 40511220213321 - 2¹⁰ = 40511220212297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40511220213329) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 527774481 + ... + 527851233.

It is an arithmetic number, because the mean of its divisors is an integer number (960099053628).

Almost surely, 2^{40511220213321} is an apocalyptic number.

It is an amenable number.

40511220213321 is a deficient number, since it is larger than the sum of its proper divisors (28615911647895).

40511220213321 is a wasteful number, since it uses less digits than its factorization.

40511220213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108343 (or 108327 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 40511220213321 its reverse (12331202211504), we get a palindrome (52842422424825).

The spelling of 40511220213321 in words is "forty trillion, five hundred eleven billion, two hundred twenty million, two hundred thirteen thousand, three hundred twenty-one".