121300123012 has 6 divisors (see below), whose sum is σ = 212275215278. Its totient is φ = 60650061504.

The previous prime is 121300122961. The next prime is 121300123073. The reversal of 121300123012 is 210321003121.

It can be written as a sum of positive squares in only one way, i.e., 90086420736 + 31213702276 = 300144^2 + 176674^2 .

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, 15162515373 + ... + 15162515380.

Almost surely, 2^121300123012 is an apocalyptic number.

It is an amenable number.

121300123012 is a deficient number, since it is larger than the sum of its proper divisors (90975092266).

121300123012 is a wasteful number, since it uses less digits than its factorization.

121300123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30325030757 (or 30325030755 counting only the distinct ones).

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

Adding to 121300123012 its reverse (210321003121), we get a palindrome (331621126133).

The spelling of 121300123012 in words is "one hundred twenty-one billion, three hundred million, one hundred twenty-three thousand, twelve".