21114202340231 has 64 divisors (see below), whose sum is σ = 28570552851456. Its totient is φ = 15068464819200.

The previous prime is 21114202340197. The next prime is 21114202340233. The reversal of 21114202340231 is 13204320241112.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-21114202340231 is a prime.

It is a super-2 number, since 2×21114202340231² (a number of 27 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 21114202340231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114202340233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1040252075 + ... + 1040272371.

It is an arithmetic number, because the mean of its divisors is an integer number (446414888304).

Almost surely, 2^{21114202340231} is an apocalyptic number.

21114202340231 is a deficient number, since it is larger than the sum of its proper divisors (7456350511225).

21114202340231 is a wasteful number, since it uses less digits than its factorization.

21114202340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28392.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21114202340231 its reverse (13204320241112), we get a palindrome (34318522581343).

The spelling of 21114202340231 in words is "twenty-one trillion, one hundred fourteen billion, two hundred two million, three hundred forty thousand, two hundred thirty-one".