121001230312 has 16 divisors (see below), whose sum is σ = 227089556100. Its totient is φ = 60444015360.

The previous prime is 121001230307. The next prime is 121001230319. The reversal of 121001230312 is 213032100121.

It can be written as a sum of positive squares in 2 ways, for example, as 120482575236 + 518655076 = 347106^2 + 22774^2 .

It is not an unprimeable number, because it can be changed into a prime (121001230319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7065889 + ... + 7082992.

Almost surely, 2^121001230312 is an apocalyptic number.

It is an amenable number.

121001230312 is a deficient number, since it is larger than the sum of its proper divisors (106088325788).

121001230312 is a wasteful number, since it uses less digits than its factorization.

121001230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14149956 (or 14149952 counting only the distinct ones).

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

Adding to 121001230312 its reverse (213032100121), we get a palindrome (334033330433).

The spelling of 121001230312 in words is "one hundred twenty-one billion, one million, two hundred thirty thousand, three hundred twelve".