21100321114142 has 16 divisors (see below), whose sum is σ = 32742261311760. Its totient is φ = 10186242537408.

The previous prime is 21100321114123. The next prime is 21100321114153. The reversal of 21100321114142 is 24141112300112.

It is a super-2 number, since 2×21100321114142² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2963978 + ... + 7140434.

It is an arithmetic number, because the mean of its divisors is an integer number (2046391331985).

Almost surely, 2^{21100321114142} is an apocalyptic number.

21100321114142 is a deficient number, since it is larger than the sum of its proper divisors (11641940197618).

21100321114142 is a wasteful number, since it uses less digits than its factorization.

21100321114142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263595.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 21100321114142 its reverse (24141112300112), we get a palindrome (45241433414254).

The spelling of 21100321114142 in words is "twenty-one trillion, one hundred billion, three hundred twenty-one million, one hundred fourteen thousand, one hundred forty-two".