121101320 has 16 divisors (see below), whose sum is σ = 272478060. Its totient is φ = 48440512.

The previous prime is 121101317. The next prime is 121101329. The reversal of 121101320 is 23101121.

It can be written as a sum of positive squares in 2 ways, for example, as 112232836 + 8868484 = 10594^2 + 2978^2 .

It is not an unprimeable number, because it can be changed into a prime (121101329) 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, 1513727 + ... + 1513806.

Almost surely, 2^121101320 is an apocalyptic number.

121101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101320 is an abundant number, since it is smaller than the sum of its proper divisors (151376740).

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

121101320 is a wasteful number, since it uses less digits than its factorization.

121101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027544 (or 3027540 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121101320 is about 11004.6044908484. The cubic root of 121101320 is about 494.7467602389.

Adding to 121101320 its reverse (23101121), we get a palindrome (144202441).

The spelling of 121101320 in words is "one hundred twenty-one million, one hundred one thousand, three hundred twenty".