215331412300001 has 4 divisors (see below), whose sum is σ = 215582674158852. Its totient is φ = 215080150441152.

The previous prime is 215331412299959. The next prime is 215331412300079. The reversal of 215331412300001 is 100003214133512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202905780250000 + 12425632050001 = 14244500^2 + 3525001^2 .

It is a cyclic number.

It is not a de Polignac number, because 215331412300001 - 2⁶ = 215331412299937 is a prime.

It is a super-2 number, since 2×215331412300001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215331412300601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125630928140 + ... + 125630929853.

It is an arithmetic number, because the mean of its divisors is an integer number (53895668539713).

Almost surely, 2^{215331412300001} is an apocalyptic number.

It is an amenable number.

215331412300001 is a deficient number, since it is larger than the sum of its proper divisors (251261858851).

215331412300001 is an equidigital number, since it uses as much as digits as its factorization.

215331412300001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251261858850.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 215331412300001 its reverse (100003214133512), we get a palindrome (315334626433513).

The spelling of 215331412300001 in words is "two hundred fifteen trillion, three hundred thirty-one billion, four hundred twelve million, three hundred thousand, one".