2116430021231 has 8 divisors (see below), whose sum is σ = 2227918233600. Its totient is φ = 2004951524760.

The previous prime is 2116430021219. The next prime is 2116430021249. The reversal of 2116430021231 is 1321200346112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2116430021231 - 2¹⁰ = 2116430020207 is a prime.

It is a super-2 number, since 2×2116430021231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2116430021231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116430021831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979705 + ... + 2855186.

It is an arithmetic number, because the mean of its divisors is an integer number (278489779200).

Almost surely, 2^{2116430021231} is an apocalyptic number.

2116430021231 is a deficient number, since it is larger than the sum of its proper divisors (111488212369).

2116430021231 is a wasteful number, since it uses less digits than its factorization.

2116430021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857949.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 2116430021231 its reverse (1321200346112), we get a palindrome (3437630367343).

The spelling of 2116430021231 in words is "two trillion, one hundred sixteen billion, four hundred thirty million, twenty-one thousand, two hundred thirty-one".