201532313450 has 24 divisors (see below), whose sum is σ = 403684727628. Its totient is φ = 74411930880.

The previous prime is 201532313449. The next prime is 201532313539. The reversal of 201532313450 is 54313235102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 109559014009 + 91973299441 = 330997^2 + 303271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155024207 + ... + 155025506.

Almost surely, 2^201532313450 is an apocalyptic number.

201532313450 is an abundant number, since it is smaller than the sum of its proper divisors (202152414178).

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

201532313450 is a wasteful number, since it uses less digits than its factorization.

201532313450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310049738 (or 310049733 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 201532313450 its reverse (54313235102), we get a palindrome (255845548552).

The spelling of 201532313450 in words is "two hundred one billion, five hundred thirty-two million, three hundred thirteen thousand, four hundred fifty".