21340514132 has 12 divisors (see below), whose sum is σ = 42681028320. Its totient is φ = 9145934616.

The previous prime is 21340514131. The next prime is 21340514149. The reversal of 21340514132 is 23141504312.

It is a happy number.

21340514132 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21340514131) 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 in 3 ways as a sum of consecutive naturals, for example, 381080582 + ... + 381080637.

It is an arithmetic number, because the mean of its divisors is an integer number (3556752360).

Almost surely, 2^21340514132 is an apocalyptic number.

It is an amenable number.

21340514132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21340514132 is a wasteful number, since it uses less digits than its factorization.

21340514132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762161230 (or 762161228 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 21340514132 in words is "twenty-one billion, three hundred forty million, five hundred fourteen thousand, one hundred thirty-two".