121431210104 has 16 divisors (see below), whose sum is σ = 227738670120. Its totient is φ = 60700898080.

The previous prime is 121431210101. The next prime is 121431210149. The reversal of 121431210104 is 401012134121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121431210101) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1803242 + ... + 1869369.

Almost surely, 2^121431210104 is an apocalyptic number.

It is an amenable number.

121431210104 is a deficient number, since it is larger than the sum of its proper divisors (106307460016).

121431210104 is a wasteful number, since it uses less digits than its factorization.

121431210104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676750 (or 3676746 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121431210104 its reverse (401012134121), we get a palindrome (522443344225).

The spelling of 121431210104 in words is "one hundred twenty-one billion, four hundred thirty-one million, two hundred ten thousand, one hundred four".