121003031012 has 12 divisors (see below), whose sum is σ = 213851892156. Its totient is φ = 59902490400.

The previous prime is 121003031003. The next prime is 121003031099. The reversal of 121003031012 is 210130300121.

It can be written as a sum of positive squares in 2 ways, for example, as 88461035776 + 32541995236 = 297424^2 + 180394^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149755823 + ... + 149756630.

It is an arithmetic number, because the mean of its divisors is an integer number (17820991013).

Almost surely, 2^121003031012 is an apocalyptic number.

It is an amenable number.

121003031012 is a deficient number, since it is larger than the sum of its proper divisors (92848861144).

121003031012 is a wasteful number, since it uses less digits than its factorization.

121003031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299512558 (or 299512556 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121003031012 its reverse (210130300121), we get a palindrome (331133331133).

The spelling of 121003031012 in words is "one hundred twenty-one billion, three million, thirty-one thousand, twelve".