21101310001330 has 64 divisors (see below), whose sum is σ = 43402943525760. Its totient is φ = 7317241334784.

The previous prime is 21101310001327. The next prime is 21101310001451. The reversal of 21101310001330 is 3310001310112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9190740 + ... + 11254879.

It is an arithmetic number, because the mean of its divisors is an integer number (678170992590).

Almost surely, 2^{21101310001330} is an apocalyptic number.

21101310001330 is an abundant number, since it is smaller than the sum of its proper divisors (22301633524430).

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

21101310001330 is a wasteful number, since it uses less digits than its factorization.

21101310001330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446123.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21101310001330 its reverse (3310001310112), we get a palindrome (24411311311442).

The spelling of 21101310001330 in words is "twenty-one trillion, one hundred one billion, three hundred ten million, one thousand, three hundred thirty".