21310210062 has 24 divisors (see below), whose sum is σ = 46178790840. Its totient is φ = 7102377360.

The previous prime is 21310210049. The next prime is 21310210063. The reversal of 21310210062 is 26001201312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310210063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48237 + ... + 212007.

It is an arithmetic number, because the mean of its divisors is an integer number (1924116285).

Almost surely, 2^21310210062 is an apocalyptic number.

21310210062 is an abundant number, since it is smaller than the sum of its proper divisors (24868580778).

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

21310210062 is a wasteful number, since it uses less digits than its factorization.

21310210062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171008 (or 171005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21310210062 its reverse (26001201312), we get a palindrome (47311411374).

The spelling of 21310210062 in words is "twenty-one billion, three hundred ten million, two hundred ten thousand, sixty-two".