121131042 has 32 divisors (see below), whose sum is σ = 258835200. Its totient is φ = 37678608.

The previous prime is 121131037. The next prime is 121131077. The reversal of 121131042 is 240131121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292 + ... + 15567.

It is an arithmetic number, because the mean of its divisors is an integer number (8088600).

Almost surely, 2^121131042 is an apocalyptic number.

121131042 is an abundant number, since it is smaller than the sum of its proper divisors (137704158).

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

121131042 is a wasteful number, since it uses less digits than its factorization.

121131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15950.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121131042 is about 11005.9548427204. The cubic root of 121131042 is about 494.7872323008.

Adding to 121131042 its reverse (240131121), we get a palindrome (361262163).

The spelling of 121131042 in words is "one hundred twenty-one million, one hundred thirty-one thousand, forty-two".