121234243265001 has 64 divisors (see below), whose sum is σ = 192293487590400. Its totient is φ = 75347648409600.

The previous prime is 121234243264969. The next prime is 121234243265011. The reversal of 121234243265001 is 100562342432121.

It is a happy number.

121234243265001 is a `hidden beast` number, since 1 + 2 + 12 + 342 + 43 + 265 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 121234243265001 - 2⁵ = 121234243264969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121234243265011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16352065 + ... + 22580046.

It is an arithmetic number, because the mean of its divisors is an integer number (3004585743600).

Almost surely, 2^{121234243265001} is an apocalyptic number.

It is an amenable number.

121234243265001 is a deficient number, since it is larger than the sum of its proper divisors (71059244325399).

121234243265001 is a wasteful number, since it uses less digits than its factorization.

121234243265001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38932287 (or 38932281 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 121234243265001 its reverse (100562342432121), we get a palindrome (221796585697122).

The spelling of 121234243265001 in words is "one hundred twenty-one trillion, two hundred thirty-four billion, two hundred forty-three million, two hundred sixty-five thousand, one".