31303130302 has 16 divisors (see below), whose sum is σ = 49720016160. Its totient is φ = 14729913088.

The previous prime is 31303130297. The next prime is 31303130321. The reversal of 31303130302 is 20303130313.

It is a super-2 number, since 2×31303130302² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31303130302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974583 + ... + 1006189.

It is an arithmetic number, because the mean of its divisors is an integer number (3107501010).

Almost surely, 2^31303130302 is an apocalyptic number.

31303130302 is a deficient number, since it is larger than the sum of its proper divisors (18416885858).

31303130302 is a wasteful number, since it uses less digits than its factorization.

31303130302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60755.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 31303130302 its reverse (20303130313), we get a palindrome (51606260615).

The spelling of 31303130302 in words is "thirty-one billion, three hundred three million, one hundred thirty thousand, three hundred two".