121115340 has 36 divisors (see below), whose sum is σ = 367383744. Its totient is φ = 32297376.

The previous prime is 121115311. The next prime is 121115341. The reversal of 121115340 is 43511121.

121115340 is a `hidden beast` number, since 121 + 11 + 534 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121115341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336252 + ... + 336611.

It is an arithmetic number, because the mean of its divisors is an integer number (10205104).

Almost surely, 2^121115340 is an apocalyptic number.

121115340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121115340 is an abundant number, since it is smaller than the sum of its proper divisors (246268404).

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

121115340 is a wasteful number, since it uses less digits than its factorization.

121115340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672878 (or 672873 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121115340 is about 11005.2414784956. The cubic root of 121115340 is about 494.7658519161.

Adding to 121115340 its reverse (43511121), we get a palindrome (164626461).

The spelling of 121115340 in words is "one hundred twenty-one million, one hundred fifteen thousand, three hundred forty".