215130553345101 has 4 divisors (see below), whose sum is σ = 286840737793472. Its totient is φ = 143420368896732.

The previous prime is 215130553345093. The next prime is 215130553345111. The reversal of 215130553345101 is 101543355031512.

215130553345101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 215130553345101 - 2³ = 215130553345093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215130553345101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215130553345111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35855092224181 + ... + 35855092224186.

It is an arithmetic number, because the mean of its divisors is an integer number (71710184448368).

Almost surely, 2^{215130553345101} is an apocalyptic number.

It is an amenable number.

215130553345101 is a deficient number, since it is larger than the sum of its proper divisors (71710184448371).

215130553345101 is an equidigital number, since it uses as much as digits as its factorization.

215130553345101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71710184448370.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 215130553345101 in words is "two hundred fifteen trillion, one hundred thirty billion, five hundred fifty-three million, three hundred forty-five thousand, one hundred one".