121234310012 has 6 divisors (see below), whose sum is σ = 212160042528. Its totient is φ = 60617155004.

The previous prime is 121234310009. The next prime is 121234310023. The reversal of 121234310012 is 210013432121.

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 as a sum of consecutive naturals, namely, 15154288748 + ... + 15154288755.

It is an arithmetic number, because the mean of its divisors is an integer number (35360007088).

Almost surely, 2^121234310012 is an apocalyptic number.

It is an amenable number.

121234310012 is a deficient number, since it is larger than the sum of its proper divisors (90925732516).

121234310012 is a wasteful number, since it uses less digits than its factorization.

121234310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30308577507 (or 30308577505 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121234310012 its reverse (210013432121), we get a palindrome (331247742133).

The spelling of 121234310012 in words is "one hundred twenty-one billion, two hundred thirty-four million, three hundred ten thousand, twelve".