201231320122032 has 40 divisors (see below), whose sum is σ = 519849725873520. Its totient is φ = 67076829431040.

The previous prime is 201231320122003. The next prime is 201231320122057. The reversal of 201231320122032 is 230221023132102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 201231320121993 and 201231320122011.

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, 3236482 + ... + 20320862.

It is an arithmetic number, because the mean of its divisors is an integer number (12996243146838).

Almost surely, 2^{201231320122032} is an apocalyptic number.

It is an amenable number.

201231320122032 is an abundant number, since it is smaller than the sum of its proper divisors (318618405751488).

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

201231320122032 is a wasteful number, since it uses less digits than its factorization.

201231320122032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17329781 (or 17329775 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 201231320122032 its reverse (230221023132102), we get a palindrome (431452343254134).

The spelling of 201231320122032 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred twenty million, one hundred twenty-two thousand, thirty-two".