121231031133112 has 16 divisors (see below), whose sum is σ = 227367486375840. Its totient is φ = 60599701432896.

The previous prime is 121231031133101. The next prime is 121231031133151. The reversal of 121231031133112 is 211331130132121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976734128 + ... + 1976795455.

It is an arithmetic number, because the mean of its divisors is an integer number (14210467898490).

Almost surely, 2^{121231031133112} is an apocalyptic number.

It is an amenable number.

121231031133112 is a deficient number, since it is larger than the sum of its proper divisors (106136455242728).

121231031133112 is a wasteful number, since it uses less digits than its factorization.

121231031133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953533422 (or 3953533418 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 121231031133112 its reverse (211331130132121), we get a palindrome (332562161265233).

The spelling of 121231031133112 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, thirty-one million, one hundred thirty-three thousand, one hundred twelve".