121310023203 has 6 divisors (see below), whose sum is σ = 175225589084. Its totient is φ = 80873348796.

The previous prime is 121310023157. The next prime is 121310023207. The reversal of 121310023203 is 302320013121.

121310023203 is a `hidden beast` number, since 121 + 310 + 0 + 232 + 0 + 3 = 666.

It is not a de Polignac number, because 121310023203 - 2¹³ = 121310015011 is a prime.

It is a super-2 number, since 2×121310023203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121310023207) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6739445725 + ... + 6739445742.

Almost surely, 2^121310023203 is an apocalyptic number.

121310023203 is a deficient number, since it is larger than the sum of its proper divisors (53915565881).

121310023203 is a wasteful number, since it uses less digits than its factorization.

121310023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478891473 (or 13478891470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121310023203 its reverse (302320013121), we get a palindrome (423630036324).

The spelling of 121310023203 in words is "one hundred twenty-one billion, three hundred ten million, twenty-three thousand, two hundred three".