121031303312 has 20 divisors (see below), whose sum is σ = 234574853436. Its totient is φ = 60495857280.

The previous prime is 121031303251. The next prime is 121031303329. The reversal of 121031303312 is 213303130121.

It can be written as a sum of positive squares in 2 ways, for example, as 67311189136 + 53720114176 = 259444^2 + 231776^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186643 + ... + 1284594.

Almost surely, 2^121031303312 is an apocalyptic number.

It is an amenable number.

121031303312 is a deficient number, since it is larger than the sum of its proper divisors (113543550124).

121031303312 is a wasteful number, since it uses less digits than its factorization.

121031303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474306 (or 2474300 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121031303312 its reverse (213303130121), we get a palindrome (334334433433).

The spelling of 121031303312 in words is "one hundred twenty-one billion, thirty-one million, three hundred three thousand, three hundred twelve".