121042000 has 40 divisors (see below), whose sum is σ = 292684392. Its totient is φ = 48416000.

The previous prime is 121041961. The next prime is 121042013. The reversal of 121042000 is 240121.

It can be written as a sum of positive squares in 4 ways, for example, as 18870336 + 102171664 = 4344^2 + 10108^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 28261 + ... + 32260.

Almost surely, 2^121042000 is an apocalyptic number.

121042000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121042000 is an abundant number, since it is smaller than the sum of its proper divisors (171642392).

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

121042000 is an equidigital number, since it uses as much as digits as its factorization.

121042000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60544 (or 60528 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 121042000 is about 11001.9089252729. The cubic root of 121042000 is about 494.6659651628.

Adding to 121042000 its reverse (240121), we get a palindrome (121282121).

The spelling of 121042000 in words is "one hundred twenty-one million, forty-two thousand".