21102323102054 has 16 divisors (see below), whose sum is σ = 31692247816320. Its totient is φ = 10538240964480.

The previous prime is 21102323102053. The next prime is 21102323102089. The reversal of 21102323102054 is 45020132320112.

It is a super-3 number, since 3×21102323102054³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102323102051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144638987 + ... + 144784809.

It is an arithmetic number, because the mean of its divisors is an integer number (1980765488520).

Almost surely, 2^{21102323102054} is an apocalyptic number.

21102323102054 is a deficient number, since it is larger than the sum of its proper divisors (10589924714266).

21102323102054 is a wasteful number, since it uses less digits than its factorization.

21102323102054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233935.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 21102323102054 its reverse (45020132320112), we get a palindrome (66122455422166).

The spelling of 21102323102054 in words is "twenty-one trillion, one hundred two billion, three hundred twenty-three million, one hundred two thousand, fifty-four".