121003210312 has 24 divisors (see below), whose sum is σ = 237174306390. Its totient is φ = 57871098560.

The previous prime is 121003210261. The next prime is 121003210343. The reversal of 121003210312 is 213012300121.

It can be written as a sum of positive squares in only one way, i.e., 120649243716 + 353966596 = 347346^2 + 18814^2 .

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 5 ways as a sum of consecutive naturals, for example, 14291989 + ... + 14300452.

Almost surely, 2^121003210312 is an apocalyptic number.

It is an amenable number.

121003210312 is a deficient number, since it is larger than the sum of its proper divisors (116171096078).

121003210312 is a wasteful number, since it uses less digits than its factorization.

121003210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28592493 (or 28592466 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121003210312 its reverse (213012300121), we get a palindrome (334015510433).

The spelling of 121003210312 in words is "one hundred twenty-one billion, three million, two hundred ten thousand, three hundred twelve".