121500241115 has 16 divisors (see below), whose sum is σ = 162934250976. Its totient is φ = 86208595200.

The previous prime is 121500241081. The next prime is 121500241169. The reversal of 121500241115 is 511142005121.

It is a happy number.

It is not a de Polignac number, because 121500241115 - 2³⁴ = 104320371931 is a prime.

It is a Duffinian number.

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, 26937932 + ... + 26942441.

It is an arithmetic number, because the mean of its divisors is an integer number (10183390686).

Almost surely, 2^121500241115 is an apocalyptic number.

121500241115 is a deficient number, since it is larger than the sum of its proper divisors (41434009861).

121500241115 is a wasteful number, since it uses less digits than its factorization.

121500241115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53880430.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 121500241115 its reverse (511142005121), we get a palindrome (632642246236).

The spelling of 121500241115 in words is "one hundred twenty-one billion, five hundred million, two hundred forty-one thousand, one hundred fifteen".