21110100100130 has 8 divisors (see below), whose sum is σ = 37998180180252. Its totient is φ = 8444040040048.

The previous prime is 21110100100049. The next prime is 21110100100223. The reversal of 21110100100130 is 3100100101112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20885567225329 + 224532874801 = 4570073^2 + 473849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055505004997 + ... + 1055505005016.

Almost surely, 2^{21110100100130} is an apocalyptic number.

21110100100130 is a deficient number, since it is larger than the sum of its proper divisors (16888080080122).

21110100100130 is a wasteful number, since it uses less digits than its factorization.

21110100100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111010010020.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 21110100100130 its reverse (3100100101112), we get a palindrome (24210200201242).

The spelling of 21110100100130 in words is "twenty-one trillion, one hundred ten billion, one hundred million, one hundred thousand, one hundred thirty".