121341452515 has 16 divisors (see below), whose sum is σ = 147113746560. Its totient is φ = 96072531840.

The previous prime is 121341452509. The next prime is 121341452593. The reversal of 121341452515 is 515254143121.

It is not a de Polignac number, because 121341452515 - 2⁷ = 121341452387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351030 + ... + 604900.

It is an arithmetic number, because the mean of its divisors is an integer number (9194609160).

Almost surely, 2^121341452515 is an apocalyptic number.

121341452515 is a deficient number, since it is larger than the sum of its proper divisors (25772294045).

121341452515 is a wasteful number, since it uses less digits than its factorization.

121341452515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254862.

The product of its digits is 24000, while the sum is 34.

Adding to 121341452515 its reverse (515254143121), we get a palindrome (636595595636).

The spelling of 121341452515 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred fifty-two thousand, five hundred fifteen".