121152315445020 has 96 divisors (see below), whose sum is σ = 377255754657600. Its totient is φ = 32278360695552.

The previous prime is 121152315444973. The next prime is 121152315445027. The reversal of 121152315445020 is 20544513251121.

121152315445020 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 52 + 3 + 154 + 450 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121152315445027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99824815 + ... + 101031174.

It is an arithmetic number, because the mean of its divisors is an integer number (3929747444350).

Almost surely, 2^{121152315445020} is an apocalyptic number.

121152315445020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121152315445020 is an abundant number, since it is smaller than the sum of its proper divisors (256103439212580).

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

121152315445020 is a wasteful number, since it uses less digits than its factorization.

121152315445020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200857124 (or 200857116 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 121152315445020 its reverse (20544513251121), we get a palindrome (141696828696141).

The spelling of 121152315445020 in words is "one hundred twenty-one trillion, one hundred fifty-two billion, three hundred fifteen million, four hundred forty-five thousand, twenty".