121005343316 has 24 divisors (see below), whose sum is σ = 248780217504. Its totient is φ = 50771472480.

The previous prime is 121005343289. The next prime is 121005343343. The reversal of 121005343316 is 613343500121.

It is an interprime number because it is at equal distance from previous prime (121005343289) and next prime (121005343343).

It is a super-2 number, since 2×121005343316² (a number of 23 digits) contains 22 as substring.

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, 105773330 + ... + 105774473.

It is an arithmetic number, because the mean of its divisors is an integer number (10365842396).

Almost surely, 2^121005343316 is an apocalyptic number.

It is an amenable number.

121005343316 is an abundant number, since it is smaller than the sum of its proper divisors (127774874188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121005343316 is a wasteful number, since it uses less digits than its factorization.

121005343316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211547831 (or 211547829 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 121005343316 its reverse (613343500121), we get a palindrome (734348843437).

The spelling of 121005343316 in words is "one hundred twenty-one billion, five million, three hundred forty-three thousand, three hundred sixteen".