121001000312 has 8 divisors (see below), whose sum is σ = 226876875600. Its totient is φ = 60500500152.

The previous prime is 121001000303. The next prime is 121001000327. The reversal of 121001000312 is 213000100121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 121001000293 and 121001000302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7562562512 + ... + 7562562527.

It is an arithmetic number, because the mean of its divisors is an integer number (28359609450).

Almost surely, 2^121001000312 is an apocalyptic number.

It is an amenable number.

121001000312 is a deficient number, since it is larger than the sum of its proper divisors (105875875288).

121001000312 is a wasteful number, since it uses less digits than its factorization.

121001000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15125125045 (or 15125125041 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121001000312 its reverse (213000100121), we get a palindrome (334001100433).

The spelling of 121001000312 in words is "one hundred twenty-one billion, one million, three hundred twelve", and thus it is an aban number.