21014127310 has 32 divisors (see below), whose sum is σ = 41727765600. Its totient is φ = 7555637760.

The previous prime is 21014127283. The next prime is 21014127311. The reversal of 21014127310 is 1372141012.

It is a happy number.

It is a super-2 number, since 2×21014127310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014127311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1063455 + ... + 1083034.

It is an arithmetic number, because the mean of its divisors is an integer number (1303992675).

Almost surely, 2^21014127310 is an apocalyptic number.

21014127310 is a deficient number, since it is larger than the sum of its proper divisors (20713638290).

21014127310 is a wasteful number, since it uses less digits than its factorization.

21014127310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146596.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 21014127310 its reverse (1372141012), we get a palindrome (22386268322).

The spelling of 21014127310 in words is "twenty-one billion, fourteen million, one hundred twenty-seven thousand, three hundred ten".