121132142 has 8 divisors (see below), whose sum is σ = 181828800. Its totient is φ = 60522544.

The previous prime is 121132127. The next prime is 121132169. The reversal of 121132142 is 241231121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121132142.

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, 18167 + ... + 23922.

It is an arithmetic number, because the mean of its divisors is an integer number (22728600).

Almost surely, 2^121132142 is an apocalyptic number.

121132142 is a deficient number, since it is larger than the sum of its proper divisors (60696658).

121132142 is a wasteful number, since it uses less digits than its factorization.

121132142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43530.

The product of its digits is 96, while the sum is 17.

The square root of 121132142 is about 11006.0048155541. The cubic root of 121132142 is about 494.7887300295.

Adding to 121132142 its reverse (241231121), we get a palindrome (362363263).

The spelling of 121132142 in words is "one hundred twenty-one million, one hundred thirty-two thousand, one hundred forty-two".