31303020201 has 32 divisors (see below), whose sum is σ = 45148122240. Its totient is φ = 19224635904.

The previous prime is 31303020187. The next prime is 31303020223. The reversal of 31303020201 is 10202030313.

It is not a de Polignac number, because 31303020201 - 2⁵ = 31303020169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31303020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4832701 + ... + 4839173.

It is an arithmetic number, because the mean of its divisors is an integer number (1410878820).

Almost surely, 2^31303020201 is an apocalyptic number.

It is an amenable number.

31303020201 is a deficient number, since it is larger than the sum of its proper divisors (13845102039).

31303020201 is a wasteful number, since it uses less digits than its factorization.

31303020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31303020201 its reverse (10202030313), we get a palindrome (41505050514).

The spelling of 31303020201 in words is "thirty-one billion, three hundred three million, twenty thousand, two hundred one".