121015114350321 has 4 divisors (see below), whose sum is σ = 161353485800432. Its totient is φ = 80676742900212.

The previous prime is 121015114350311. The next prime is 121015114350337. The reversal of 121015114350321 is 123053411510121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121015114350321 - 2¹⁸ = 121015114088177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121015114350311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20169185725051 + ... + 20169185725056.

It is an arithmetic number, because the mean of its divisors is an integer number (40338371450108).

Almost surely, 2^{121015114350321} is an apocalyptic number.

It is an amenable number.

121015114350321 is a deficient number, since it is larger than the sum of its proper divisors (40338371450111).

121015114350321 is an equidigital number, since it uses as much as digits as its factorization.

121015114350321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40338371450110.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 121015114350321 its reverse (123053411510121), we get a palindrome (244068525860442).

The spelling of 121015114350321 in words is "one hundred twenty-one trillion, fifteen billion, one hundred fourteen million, three hundred fifty thousand, three hundred twenty-one".