31021102030 has 16 divisors (see below), whose sum is σ = 56624435424. Its totient is φ = 12233673760.

The previous prime is 31021101997. The next prime is 31021102067. The reversal of 31021102030 is 3020112013.

It is a self number, because there is not a number n which added to its sum of digits gives 31021102030.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21845137 + ... + 21846556.

It is an arithmetic number, because the mean of its divisors is an integer number (3539027214).

Almost surely, 2^31021102030 is an apocalyptic number.

31021102030 is a deficient number, since it is larger than the sum of its proper divisors (25603333394).

31021102030 is a wasteful number, since it uses less digits than its factorization.

31021102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43691771.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31021102030 its reverse (3020112013), we get a palindrome (34041214043).

The spelling of 31021102030 in words is "thirty-one billion, twenty-one million, one hundred two thousand, thirty".