121142004 has 12 divisors (see below), whose sum is σ = 282664704. Its totient is φ = 40380664.

The previous prime is 121141987. The next prime is 121142011. The reversal of 121142004 is 400241121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×121142004³ (a number of 25 digits) contains 333 as substring.

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, 5047572 + ... + 5047595.

It is an arithmetic number, because the mean of its divisors is an integer number (23555392).

Almost surely, 2^121142004 is an apocalyptic number.

It is an amenable number.

121142004 is an abundant number, since it is smaller than the sum of its proper divisors (161522700).

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

121142004 is a wasteful number, since it uses less digits than its factorization.

121142004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095174 (or 10095172 counting only the distinct ones).

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

The square root of 121142004 is about 11006.4528345875. The cubic root of 121142004 is about 494.8021574429.

Adding to 121142004 its reverse (400241121), we get a palindrome (521383125).

The spelling of 121142004 in words is "one hundred twenty-one million, one hundred forty-two thousand, four".