121312332000 has 144 divisors (see below), whose sum is σ = 430537594032. Its totient is φ = 32349945600.

The previous prime is 121312331971. The next prime is 121312332013. The reversal of 121312332000 is 233213121.

121312332000 is a `hidden beast` number, since 1 + 21 + 312 + 332 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1648894 + ... + 1720893.

It is an arithmetic number, because the mean of its divisors is an integer number (2989844403).

Almost surely, 2^121312332000 is an apocalyptic number.

121312332000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121312332000 is an abundant number, since it is smaller than the sum of its proper divisors (309225262032).

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

121312332000 is a wasteful number, since it uses less digits than its factorization.

121312332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369818 (or 3369797 counting only the distinct ones).

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

Adding to 121312332000 its reverse (233213121), we get a palindrome (121545545121).

The spelling of 121312332000 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred thirty-two thousand".