121301340 has 96 divisors (see below), whose sum is σ = 348257280. Its totient is φ = 31539456.

The previous prime is 121301293. The next prime is 121301351. The reversal of 121301340 is 43103121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744099 + ... + 744261.

It is an arithmetic number, because the mean of its divisors is an integer number (3627680).

Almost surely, 2^121301340 is an apocalyptic number.

121301340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121301340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174128640).

121301340 is an abundant number, since it is smaller than the sum of its proper divisors (226955940).

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

121301340 is a wasteful number, since it uses less digits than its factorization.

121301340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121301340 is about 11013.6887553626. The cubic root of 121301340 is about 495.0189973323.

Adding to 121301340 its reverse (43103121), we get a palindrome (164404461).

The spelling of 121301340 in words is "one hundred twenty-one million, three hundred one thousand, three hundred forty".