21203000322132 has 24 divisors (see below), whose sum is σ = 49474427891616. Its totient is φ = 7067558135008.

The previous prime is 21203000322113. The next prime is 21203000322191. The reversal of 21203000322132 is 23122300030212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21203000322099 and 21203000322108.

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, 12764718 + ... + 14329829.

It is an arithmetic number, because the mean of its divisors is an integer number (2061434495484).

Almost surely, 2^{21203000322132} is an apocalyptic number.

It is an amenable number.

21203000322132 is an abundant number, since it is smaller than the sum of its proper divisors (28271427569484).

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

21203000322132 is a wasteful number, since it uses less digits than its factorization.

21203000322132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27159767 (or 27159765 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21203000322132 its reverse (23122300030212), we get a palindrome (44325300352344).

The spelling of 21203000322132 in words is "twenty-one trillion, two hundred three billion, three hundred twenty-two thousand, one hundred thirty-two".