100121123012312 has 16 divisors (see below), whose sum is σ = 187727256517200. Its totient is φ = 50060521274400.

The previous prime is 100121123012303. The next prime is 100121123012377. The reversal of 100121123012312 is 213210321121001.

It is a congruent number.

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, 7335989 + ... + 15939227.

It is an arithmetic number, because the mean of its divisors is an integer number (11732953532325).

Almost surely, 2^{100121123012312} is an apocalyptic number.

It is an amenable number.

100121123012312 is a deficient number, since it is larger than the sum of its proper divisors (87606133504888).

100121123012312 is a wasteful number, since it uses less digits than its factorization.

100121123012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057946 (or 10057942 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 100121123012312 its reverse (213210321121001), we get a palindrome (313331444133313).

The spelling of 100121123012312 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-three million, twelve thousand, three hundred twelve".