121142375 has 8 divisors (see below), whose sum is σ = 151185840. Its totient is φ = 96913800.

The previous prime is 121142353. The next prime is 121142377. The reversal of 121142375 is 573241121.

It is not a de Polignac number, because 121142375 - 2¹⁰ = 121141351 is a prime.

It is a super-3 number, since 3×121142375³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484445 + ... + 484694.

It is an arithmetic number, because the mean of its divisors is an integer number (18898230).

Almost surely, 2^121142375 is an apocalyptic number.

121142375 is a deficient number, since it is larger than the sum of its proper divisors (30043465).

121142375 is an frugal number, since it uses more digits than its factorization.

121142375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969154 (or 969144 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 121142375 is about 11006.4696883242. The cubic root of 121142375 is about 494.8026625565.

Adding to 121142375 its reverse (573241121), we get a palindrome (694383496).

The spelling of 121142375 in words is "one hundred twenty-one million, one hundred forty-two thousand, three hundred seventy-five".