21110000310 has 48 divisors (see below), whose sum is σ = 62726859936. Its totient is φ = 4825142784.

The previous prime is 21110000287. The next prime is 21110000311. The reversal of 21110000310 is 1300001112.

It is a super-2 number, since 2×21110000310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 21110000292 and 21110000301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110000311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16753339 + ... + 16754598.

It is an arithmetic number, because the mean of its divisors is an integer number (1306809582).

Almost surely, 2^21110000310 is an apocalyptic number.

21110000310 is an abundant number, since it is smaller than the sum of its proper divisors (41616859626).

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

21110000310 is a wasteful number, since it uses less digits than its factorization.

21110000310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33507957 (or 33507954 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 21110000310 its reverse (1300001112), we get a palindrome (22410001422).

The spelling of 21110000310 in words is "twenty-one billion, one hundred ten million, three hundred ten", and thus it is an aban number.