121341450315 has 16 divisors (see below), whose sum is σ = 194337999648. Its totient is φ = 64651547136.

The previous prime is 121341450287. The next prime is 121341450317. The reversal of 121341450315 is 513054143121.

It is not a de Polignac number, because 121341450315 - 2²⁰ = 121340401739 is a prime.

It is a super-2 number, since 2×121341450315² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121341450317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3977614 + ... + 4008003.

It is an arithmetic number, because the mean of its divisors is an integer number (12146124978).

Almost surely, 2^121341450315 is an apocalyptic number.

121341450315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121341450315 is a deficient number, since it is larger than the sum of its proper divisors (72996549333).

121341450315 is a wasteful number, since it uses less digits than its factorization.

121341450315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986638.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 121341450315 its reverse (513054143121), we get a palindrome (634395593436).

The spelling of 121341450315 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred fifty thousand, three hundred fifteen".