121003420 has 12 divisors (see below), whose sum is σ = 254107224. Its totient is φ = 48401360.

The previous prime is 121003417. The next prime is 121003439. The reversal of 121003420 is 24300121.

It is a self number, because there is not a number n which added to its sum of digits gives 121003420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025066 + ... + 3025105.

It is an arithmetic number, because the mean of its divisors is an integer number (21175602).

Almost surely, 2^121003420 is an apocalyptic number.

121003420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121003420 is an abundant number, since it is smaller than the sum of its proper divisors (133103804).

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

121003420 is a wasteful number, since it uses less digits than its factorization.

121003420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050180 (or 6050178 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 121003420 is about 11000.1554534470. The cubic root of 121003420 is about 494.6134042311.

Adding to 121003420 its reverse (24300121), we get a palindrome (145303541).

The spelling of 121003420 in words is "one hundred twenty-one million, three thousand, four hundred twenty".