121316115470 has 16 divisors (see below), whose sum is σ = 238220736048. Its totient is φ = 44114951040.

The previous prime is 121316115443. The next prime is 121316115533. The reversal of 121316115470 is 74511613121.

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, 551436779 + ... + 551436998.

It is an arithmetic number, because the mean of its divisors is an integer number (14888796003).

Almost surely, 2^121316115470 is an apocalyptic number.

121316115470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121316115470 is a deficient number, since it is larger than the sum of its proper divisors (116904620578).

121316115470 is a wasteful number, since it uses less digits than its factorization.

121316115470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102873795.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 121316115470 its reverse (74511613121), we get a palindrome (195827728591).

The spelling of 121316115470 in words is "one hundred twenty-one billion, three hundred sixteen million, one hundred fifteen thousand, four hundred seventy".