121352305015 has 8 divisors (see below), whose sum is σ = 145625583168. Its totient is φ = 97079965920.

The previous prime is 121352304907. The next prime is 121352305021. The reversal of 121352305015 is 510503253121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121352305015 - 2⁹ = 121352304503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90514 + ... + 500896.

It is an arithmetic number, because the mean of its divisors is an integer number (18203197896).

Almost surely, 2^121352305015 is an apocalyptic number.

121352305015 is a deficient number, since it is larger than the sum of its proper divisors (24273278153).

121352305015 is an equidigital number, since it uses as much as digits as its factorization.

121352305015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469529.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 121352305015 its reverse (510503253121), we get a palindrome (631855558136).

The spelling of 121352305015 in words is "one hundred twenty-one billion, three hundred fifty-two million, three hundred five thousand, fifteen".