21343140310 has 48 divisors (see below), whose sum is σ = 40023009648. Its totient is φ = 8188810560.

The previous prime is 21343140281. The next prime is 21343140317. The reversal of 21343140310 is 1304134312.

It is a super-2 number, since 2×21343140310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343140317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1859449 + ... + 1870891.

It is an arithmetic number, because the mean of its divisors is an integer number (833812701).

Almost surely, 2^21343140310 is an apocalyptic number.

21343140310 is a deficient number, since it is larger than the sum of its proper divisors (18679869338).

21343140310 is a wasteful number, since it uses less digits than its factorization.

21343140310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11629 (or 11558 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21343140310 its reverse (1304134312), we get a palindrome (22647274622).

The spelling of 21343140310 in words is "twenty-one billion, three hundred forty-three million, one hundred forty thousand, three hundred ten".