121041420 has 48 divisors (see below), whose sum is σ = 339746400. Its totient is φ = 32198656.

The previous prime is 121041413. The next prime is 121041443. The reversal of 121041420 is 24140121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121041420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24694 + ... + 29186.

It is an arithmetic number, because the mean of its divisors is an integer number (7078050).

Almost surely, 2^121041420 is an apocalyptic number.

121041420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121041420 is an abundant number, since it is smaller than the sum of its proper divisors (218704980).

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

121041420 is a wasteful number, since it uses less digits than its factorization.

121041420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954 (or 4952 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 121041420 is about 11001.8825661793. The cubic root of 121041420 is about 494.6651750604.

Adding to 121041420 its reverse (24140121), we get a palindrome (145181541).

The spelling of 121041420 in words is "one hundred twenty-one million, forty-one thousand, four hundred twenty".