203121332132 has 12 divisors (see below), whose sum is σ = 374170875120. Its totient is φ = 96215367816.

The previous prime is 203121332119. The next prime is 203121332171. The reversal of 203121332132 is 231233121302.

It is a junction number, because it is equal to n+sod(n) for n = 203121332098 and 203121332107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336324478 + ... + 1336324629.

It is an arithmetic number, because the mean of its divisors is an integer number (31180906260).

Almost surely, 2^203121332132 is an apocalyptic number.

It is an amenable number.

203121332132 is a deficient number, since it is larger than the sum of its proper divisors (171049542988).

203121332132 is a wasteful number, since it uses less digits than its factorization.

203121332132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672649130 (or 2672649128 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203121332132 its reverse (231233121302), we get a palindrome (434354453434).

The spelling of 203121332132 in words is "two hundred three billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty-two".