121025340 has 60 divisors (see below), whose sum is σ = 379666056. Its totient is φ = 32272992.

The previous prime is 121025293. The next prime is 121025351. The reversal of 121025340 is 43520121.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35734 + ... + 38973.

Almost surely, 2^121025340 is an apocalyptic number.

121025340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121025340 is an abundant number, since it is smaller than the sum of its proper divisors (258640716).

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

121025340 is a wasteful number, since it uses less digits than its factorization.

121025340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74728 (or 74717 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 121025340 is about 11001.1517578843. The cubic root of 121025340 is about 494.6432691479.

Adding to 121025340 its reverse (43520121), we get a palindrome (164545461).

The spelling of 121025340 in words is "one hundred twenty-one million, twenty-five thousand, three hundred forty".