215321261030404 has 12 divisors (see below), whose sum is σ = 376898850247500. Its totient is φ = 107635875245408.

The previous prime is 215321261030371. The next prime is 215321261030419. The reversal of 215321261030404 is 404030162123512.

It can be written as a sum of positive squares in 2 ways, for example, as 115422835224004 + 99898425806400 = 10743502^2 + 9994920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 215321261030404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188797879 + ... + 6188832670.

It is an arithmetic number, because the mean of its divisors is an integer number (31408237520625).

Almost surely, 2^{215321261030404} is an apocalyptic number.

It is an amenable number.

215321261030404 is a deficient number, since it is larger than the sum of its proper divisors (161577589217096).

215321261030404 is a wasteful number, since it uses less digits than its factorization.

215321261030404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12377634902 (or 12377634900 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 215321261030404 in words is "two hundred fifteen trillion, three hundred twenty-one billion, two hundred sixty-one million, thirty thousand, four hundred four".