121431002 has 48 divisors (see below), whose sum is σ = 231483840. Its totient is φ = 46759680.

The previous prime is 121430993. The next prime is 121431019. The reversal of 121431002 is 200134121.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 23 ways as a sum of consecutive naturals, for example, 163949 + ... + 164687.

It is an arithmetic number, because the mean of its divisors is an integer number (4822580).

Almost surely, 2^121431002 is an apocalyptic number.

121431002 is a deficient number, since it is larger than the sum of its proper divisors (110052838).

121431002 is a wasteful number, since it uses less digits than its factorization.

121431002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121431002 is about 11019.5735852164. The cubic root of 121431002 is about 495.1953138707.

Adding to 121431002 its reverse (200134121), we get a palindrome (321565123).

The spelling of 121431002 in words is "one hundred twenty-one million, four hundred thirty-one thousand, two".