21311213202132 has 96 divisors (see below), whose sum is σ = 60176570065920. Its totient is φ = 5730390904320.

The previous prime is 21311213202113. The next prime is 21311213202161. The reversal of 21311213202132 is 23120231211312.

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, 22980219 + ... + 23889597.

It is an arithmetic number, because the mean of its divisors is an integer number (626839271520).

Almost surely, 2^{21311213202132} is an apocalyptic number.

It is an amenable number.

21311213202132 is an abundant number, since it is smaller than the sum of its proper divisors (38865356863788).

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

21311213202132 is a wasteful number, since it uses less digits than its factorization.

21311213202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925821 (or 925819 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21311213202132 its reverse (23120231211312), we get a palindrome (44431444413444).

The spelling of 21311213202132 in words is "twenty-one trillion, three hundred eleven billion, two hundred thirteen million, two hundred two thousand, one hundred thirty-two".