121231320132012 has 12 divisors (see below), whose sum is σ = 282873080308056. Its totient is φ = 40410440044000.

The previous prime is 121231320132007. The next prime is 121231320132023. The reversal of 121231320132012 is 210231023132121.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051305005489 + ... + 5051305005512.

It is an arithmetic number, because the mean of its divisors is an integer number (23572756692338).

Almost surely, 2^{121231320132012} is an apocalyptic number.

121231320132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121231320132012 is an abundant number, since it is smaller than the sum of its proper divisors (161641760176044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121231320132012 is a wasteful number, since it uses less digits than its factorization.

121231320132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102610011008 (or 10102610011006 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121231320132012 its reverse (210231023132121), we get a palindrome (331462343264133).

The spelling of 121231320132012 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred twenty million, one hundred thirty-two thousand, twelve".