31030303133 has 24 divisors (see below), whose sum is σ = 33648664896. Its totient is φ = 28509353600.

The previous prime is 31030303127. The next prime is 31030303163. The reversal of 31030303133 is 33130303013.

It is not a de Polignac number, because 31030303133 - 2⁶ = 31030303069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030303123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70045610 + ... + 70046052.

It is an arithmetic number, because the mean of its divisors is an integer number (1402027704).

Almost surely, 2^31030303133 is an apocalyptic number.

It is an amenable number.

31030303133 is a deficient number, since it is larger than the sum of its proper divisors (2618361763).

31030303133 is an equidigital number, since it uses as much as digits as its factorization.

31030303133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 20.

Adding to 31030303133 its reverse (33130303013), we get a palindrome (64160606146).

The spelling of 31030303133 in words is "thirty-one billion, thirty million, three hundred three thousand, one hundred thirty-three".