216350400100311 has 10 divisors (see below), whose sum is σ = 323190103853672. Its totient is φ = 144233600066820.

The previous prime is 216350400100309. The next prime is 216350400100313. The reversal of 216350400100311 is 113001004053612.

It is a happy number.

216350400100311 is a `hidden beast` number, since 2 + 1 + 635 + 0 + 4 + 0 + 0 + 10 + 0 + 3 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (216350400100309) and next prime (216350400100313).

It is not a de Polignac number, because 216350400100311 - 2¹ = 216350400100309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216350400100313) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1335496296835 + ... + 1335496296996.

Almost surely, 2^{216350400100311} is an apocalyptic number.

216350400100311 is a deficient number, since it is larger than the sum of its proper divisors (106839703753361).

216350400100311 is an equidigital number, since it uses as much as digits as its factorization.

216350400100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670992593843 (or 2670992593834 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 216350400100311 its reverse (113001004053612), we get a palindrome (329351404153923).

The spelling of 216350400100311 in words is "two hundred sixteen trillion, three hundred fifty billion, four hundred million, one hundred thousand, three hundred eleven".