21311233011214 has 64 divisors (see below), whose sum is σ = 33194810880000. Its totient is φ = 10250651923200.

The previous prime is 21311233011209. The next prime is 21311233011223. The reversal of 21311233011214 is 41211033211312.

It is a congruent number.

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, 11538295239 + ... + 11538297085.

It is an arithmetic number, because the mean of its divisors is an integer number (518668920000).

Almost surely, 2^{21311233011214} is an apocalyptic number.

21311233011214 is a deficient number, since it is larger than the sum of its proper divisors (11883577868786).

21311233011214 is a wasteful number, since it uses less digits than its factorization.

21311233011214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 21311233011214 its reverse (41211033211312), we get a palindrome (62522266222526).

The spelling of 21311233011214 in words is "twenty-one trillion, three hundred eleven billion, two hundred thirty-three million, eleven thousand, two hundred fourteen".