21321132032102 has 16 divisors (see below), whose sum is σ = 37328182525440. Its totient is φ = 8943210396168.

The previous prime is 21321132032093. The next prime is 21321132032147. The reversal of 21321132032102 is 20123023112312.

It is a super-2 number, since 2×21321132032102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16201467452 + ... + 16201468767.

It is an arithmetic number, because the mean of its divisors is an integer number (2333011407840).

Almost surely, 2^{21321132032102} is an apocalyptic number.

21321132032102 is a deficient number, since it is larger than the sum of its proper divisors (16007050493338).

21321132032102 is a wasteful number, since it uses less digits than its factorization.

21321132032102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32402936275.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21321132032102 its reverse (20123023112312), we get a palindrome (41444155144414).

The spelling of 21321132032102 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred thirty-two million, thirty-two thousand, one hundred two".