40420420313321 has 8 divisors (see below), whose sum is σ = 41408892174888. Its totient is φ = 39432072640000.

The previous prime is 40420420313281. The next prime is 40420420313327. The reversal of 40420420313321 is 12331302402404.

It can be written as a sum of positive squares in 4 ways, for example, as 11773572637696 + 28646847675625 = 3431264^2 + 5352275^2 .

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 40420420313321 - 2¹⁰ = 40420420312297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40420420313327) 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, 30387980 + ... + 31690221.

It is an arithmetic number, because the mean of its divisors is an integer number (5176111521861).

Almost surely, 2^{40420420313321} is an apocalyptic number.

40420420313321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40420420313321 is a deficient number, since it is larger than the sum of its proper divisors (988471861567).

40420420313321 is a wasteful number, since it uses less digits than its factorization.

40420420313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62094123.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 40420420313321 its reverse (12331302402404), we get a palindrome (52751722715725).

The spelling of 40420420313321 in words is "forty trillion, four hundred twenty billion, four hundred twenty million, three hundred thirteen thousand, three hundred twenty-one".