201311233232 has 20 divisors (see below), whose sum is σ = 393618871140. Its totient is φ = 99732169728.

The previous prime is 201311233229. The next prime is 201311233303. The reversal of 201311233232 is 232332113102.

It can be written as a sum of positive squares in 2 ways, for example, as 169856082496 + 31455150736 = 412136^2 + 177356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201311233198 and 201311233207.

It is a congruent number.

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, 57713633 + ... + 57717120.

It is an arithmetic number, because the mean of its divisors is an integer number (19680943557).

Almost surely, 2^201311233232 is an apocalyptic number.

It is an amenable number.

201311233232 is a deficient number, since it is larger than the sum of its proper divisors (192307637908).

201311233232 is a wasteful number, since it uses less digits than its factorization.

201311233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115430870 (or 115430864 counting only the distinct ones).

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

Adding to 201311233232 its reverse (232332113102), we get a palindrome (433643346334).

The spelling of 201311233232 in words is "two hundred one billion, three hundred eleven million, two hundred thirty-three thousand, two hundred thirty-two".