21011012102310 has 16 divisors (see below), whose sum is σ = 50426429045616. Its totient is φ = 5602936560608.

The previous prime is 21011012102293. The next prime is 21011012102317. The reversal of 21011012102310 is 1320121011012.

It is a super-2 number, since 2×21011012102310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21011012102310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011012102317) 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 7 ways as a sum of consecutive naturals, for example, 350183535009 + ... + 350183535068.

It is an arithmetic number, because the mean of its divisors is an integer number (3151651815351).

Almost surely, 2^{21011012102310} is an apocalyptic number.

21011012102310 is an abundant number, since it is smaller than the sum of its proper divisors (29415416943306).

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

21011012102310 is a wasteful number, since it uses less digits than its factorization.

21011012102310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700367070087.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21011012102310 its reverse (1320121011012), we get a palindrome (22331133113322).

The spelling of 21011012102310 in words is "twenty-one trillion, eleven billion, twelve million, one hundred two thousand, three hundred ten".