216103238401 has 4 divisors (see below), whose sum is σ = 221128895152. Its totient is φ = 211077581652.

The previous prime is 216103238387. The next prime is 216103238411. The reversal of 216103238401 is 104832301612.

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 a cyclic number.

It is not a de Polignac number, because 216103238401 - 2²⁵ = 216069683969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216103238411) 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, 2512828311 + ... + 2512828396.

It is an arithmetic number, because the mean of its divisors is an integer number (55282223788).

Almost surely, 2^216103238401 is an apocalyptic number.

It is an amenable number.

216103238401 is a deficient number, since it is larger than the sum of its proper divisors (5025656751).

216103238401 is an equidigital number, since it uses as much as digits as its factorization.

216103238401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025656750.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 216103238401 in words is "two hundred sixteen billion, one hundred three million, two hundred thirty-eight thousand, four hundred one".