21310102311102 has 24 divisors (see below), whose sum is σ = 50369332735800. Its totient is φ = 6457606760880.

The previous prime is 21310102311101. The next prime is 21310102311109. The reversal of 21310102311102 is 20111320101312.

21310102311102 is a `hidden beast` number, since 2 + 1 + 310 + 10 + 231 + 110 + 2 = 666.

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 (21310102311101) 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 11 ways as a sum of consecutive naturals, for example, 53813389477 + ... + 53813389872.

It is an arithmetic number, because the mean of its divisors is an integer number (2098722197325).

Almost surely, 2^{21310102311102} is an apocalyptic number.

21310102311102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21310102311102 is an abundant number, since it is smaller than the sum of its proper divisors (29059230424698).

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

21310102311102 is a wasteful number, since it uses less digits than its factorization.

21310102311102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107626779368 (or 107626779365 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21310102311102 its reverse (20111320101312), we get a palindrome (41421422412414).

The spelling of 21310102311102 in words is "twenty-one trillion, three hundred ten billion, one hundred two million, three hundred eleven thousand, one hundred two".