121151340 has 36 divisors (see below), whose sum is σ = 367492944. Its totient is φ = 32306976.

The previous prime is 121151321. The next prime is 121151341. The reversal of 121151340 is 43151121.

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 (121151341) 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, 336352 + ... + 336711.

Almost surely, 2^121151340 is an apocalyptic number.

121151340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121151340 is an abundant number, since it is smaller than the sum of its proper divisors (246341604).

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

121151340 is a wasteful number, since it uses less digits than its factorization.

121151340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673078 (or 673073 counting only the distinct ones).

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

The square root of 121151340 is about 11006.8769412581. The cubic root of 121151340 is about 494.8148680198.

The spelling of 121151340 in words is "one hundred twenty-one million, one hundred fifty-one thousand, three hundred forty".