121431004 has 24 divisors (see below), whose sum is σ = 220268160. Its totient is φ = 58505664.

The previous prime is 121430993. The next prime is 121431019. The reversal of 121431004 is 400134121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99502 + ... + 100714.

It is an arithmetic number, because the mean of its divisors is an integer number (9177840).

Almost surely, 2^121431004 is an apocalyptic number.

It is an amenable number.

121431004 is a deficient number, since it is larger than the sum of its proper divisors (98837156).

121431004 is a wasteful number, since it uses less digits than its factorization.

121431004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109 (or 2107 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121431004 is about 11019.5736759641. The cubic root of 121431004 is about 495.1953165894.

Adding to 121431004 its reverse (400134121), we get a palindrome (521565125).

The spelling of 121431004 in words is "one hundred twenty-one million, four hundred thirty-one thousand, four".