121452133515 has 64 divisors (see below), whose sum is σ = 201714554880. Its totient is φ = 62351769600.

The previous prime is 121452133477. The next prime is 121452133531. The reversal of 121452133515 is 515331254121.

It is not a de Polignac number, because 121452133515 - 2¹¹ = 121452131467 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21535066 + ... + 21540704.

It is an arithmetic number, because the mean of its divisors is an integer number (3151789920).

Almost surely, 2^121452133515 is an apocalyptic number.

121452133515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121452133515 is a deficient number, since it is larger than the sum of its proper divisors (80262421365).

121452133515 is a wasteful number, since it uses less digits than its factorization.

121452133515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092.

The product of its digits is 18000, while the sum is 33.

Adding to 121452133515 its reverse (515331254121), we get a palindrome (636783387636).

The spelling of 121452133515 in words is "one hundred twenty-one billion, four hundred fifty-two million, one hundred thirty-three thousand, five hundred fifteen".