201031521402 has 8 divisors (see below), whose sum is σ = 402063042816. Its totient is φ = 67010507132.

The previous prime is 201031521373. The next prime is 201031521503. The reversal of 201031521402 is 204125130102.

201031521402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

201031521402 is an admirable 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, 16752626778 + ... + 16752626789.

It is an arithmetic number, because the mean of its divisors is an integer number (50257880352).

Almost surely, 2^201031521402 is an apocalyptic number.

201031521402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201031521402 is a wasteful number, since it uses less digits than its factorization.

201031521402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33505253572.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 201031521402 its reverse (204125130102), we get a palindrome (405156651504).

The spelling of 201031521402 in words is "two hundred one billion, thirty-one million, five hundred twenty-one thousand, four hundred two".