21314653510342 has 4 divisors (see below), whose sum is σ = 31971980265516. Its totient is φ = 10657326755170.

The previous prime is 21314653510307. The next prime is 21314653510343. The reversal of 21314653510342 is 24301535641312.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21314653510295 and 21314653510304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314653510343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328663377584 + ... + 5328663377587.

It is an arithmetic number, because the mean of its divisors is an integer number (7992995066379).

Almost surely, 2^{21314653510342} is an apocalyptic number.

21314653510342 is a deficient number, since it is larger than the sum of its proper divisors (10657326755174).

21314653510342 is a wasteful number, since it uses less digits than its factorization.

21314653510342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657326755173.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 21314653510342 in words is "twenty-one trillion, three hundred fourteen billion, six hundred fifty-three million, five hundred ten thousand, three hundred forty-two".