121700340 has 48 divisors (see below), whose sum is σ = 378624960. Its totient is φ = 32453280.

The previous prime is 121700333. The next prime is 121700387. The reversal of 121700340 is 43007121.

It is a super-2 number, since 2×121700340² = 29621945512231200, which contains 22 as substring.

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

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112146 + ... + 113225.

It is an arithmetic number, because the mean of its divisors is an integer number (7888020).

Almost surely, 2^121700340 is an apocalyptic number.

121700340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121700340 is an abundant number, since it is smaller than the sum of its proper divisors (256924620).

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

121700340 is a wasteful number, since it uses less digits than its factorization.

121700340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225389 (or 225381 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 121700340 is about 11031.7877064418. The cubic root of 121700340 is about 495.5611634055.

Adding to 121700340 its reverse (43007121), we get a palindrome (164707461).

The spelling of 121700340 in words is "one hundred twenty-one million, seven hundred thousand, three hundred forty".