31303145201 has 4 divisors (see below), whose sum is σ = 31344827904. Its totient is φ = 31261462500.

The previous prime is 31303145191. The next prime is 31303145219. The reversal of 31303145201 is 10254130313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31303145201 - 2¹⁰ = 31303144177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303141201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20840225 + ... + 20841726.

It is an arithmetic number, because the mean of its divisors is an integer number (7836206976).

Almost surely, 2^31303145201 is an apocalyptic number.

It is an amenable number.

31303145201 is a deficient number, since it is larger than the sum of its proper divisors (41682703).

31303145201 is an equidigital number, since it uses as much as digits as its factorization.

31303145201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41682702.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 31303145201 its reverse (10254130313), we get a palindrome (41557275514).

The spelling of 31303145201 in words is "thirty-one billion, three hundred three million, one hundred forty-five thousand, two hundred one".