121541340 has 24 divisors (see below), whose sum is σ = 340315920. Its totient is φ = 32411008.

The previous prime is 121541333. The next prime is 121541351. The reversal of 121541340 is 43145121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012785 + ... + 1012904.

It is an arithmetic number, because the mean of its divisors is an integer number (14179830).

Almost surely, 2^121541340 is an apocalyptic number.

121541340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121541340 is an abundant number, since it is smaller than the sum of its proper divisors (218774580).

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

121541340 is a wasteful number, since it uses less digits than its factorization.

121541340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025701 (or 2025699 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121541340 is about 11024.5789035228. The cubic root of 121541340 is about 495.3452544922.

Adding to 121541340 its reverse (43145121), we get a palindrome (164686461).

The spelling of 121541340 in words is "one hundred twenty-one million, five hundred forty-one thousand, three hundred forty".