21032102311 has 8 divisors (see below), whose sum is σ = 22946094864. Its totient is φ = 19118440320.

The previous prime is 21032102281. The next prime is 21032102317. The reversal of 21032102311 is 11320123012.

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

It is a cyclic number.

It is not a de Polignac number, because 21032102311 - 2⁹ = 21032101799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032102317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61311 + ... + 214063.

It is an arithmetic number, because the mean of its divisors is an integer number (2868261858).

Almost surely, 2^21032102311 is an apocalyptic number.

21032102311 is a deficient number, since it is larger than the sum of its proper divisors (1913992553).

21032102311 is a wasteful number, since it uses less digits than its factorization.

21032102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165281.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21032102311 its reverse (11320123012), we get a palindrome (32352225323).

The spelling of 21032102311 in words is "twenty-one billion, thirty-two million, one hundred two thousand, three hundred eleven".