31030121303000 has 64 divisors (see below), whose sum is σ = 72674800473600. Its totient is φ = 12401054227200.

The previous prime is 31030121302987. The next prime is 31030121303029. The reversal of 31030121303000 is 30312103013.

It is a self number, because there is not a number n which added to its sum of digits gives 31030121303000.

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 15 ways as a sum of consecutive naturals, for example, 12613304 + ... + 14871303.

It is an arithmetic number, because the mean of its divisors is an integer number (1135543757400).

Almost surely, 2^{31030121303000} is an apocalyptic number.

It is an amenable number.

31030121303000 is an abundant number, since it is smaller than the sum of its proper divisors (41644679170600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31030121303000 is a wasteful number, since it uses less digits than its factorization.

31030121303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27485757 (or 27485743 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31030121303000 its reverse (30312103013), we get a palindrome (31060433406013).

The spelling of 31030121303000 in words is "thirty-one trillion, thirty billion, one hundred twenty-one million, three hundred three thousand".