121324635036 has 144 divisors (see below), whose sum is σ = 350921975040. Its totient is φ = 34983843840.

The previous prime is 121324634989. The next prime is 121324635041. The reversal of 121324635036 is 630536423121.

121324635036 is a `hidden beast` number, since 1 + 2 + 13 + 2 + 4 + 635 + 0 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1723335 + ... + 1792353.

It is an arithmetic number, because the mean of its divisors is an integer number (2436958160).

Almost surely, 2^121324635036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121324635036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175460987520).

121324635036 is an abundant number, since it is smaller than the sum of its proper divisors (229597340004).

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

121324635036 is a wasteful number, since it uses less digits than its factorization.

121324635036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69256 (or 69251 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 121324635036 in words is "one hundred twenty-one billion, three hundred twenty-four million, six hundred thirty-five thousand, thirty-six".