121046142 has 32 divisors (see below), whose sum is σ = 277466112. Its totient is φ = 34485984.

The previous prime is 121046099. The next prime is 121046147. The reversal of 121046142 is 241640121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121046147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11488 + ... + 19340.

It is an arithmetic number, because the mean of its divisors is an integer number (8670816).

Almost surely, 2^121046142 is an apocalyptic number.

121046142 is an abundant number, since it is smaller than the sum of its proper divisors (156419970).

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

121046142 is a wasteful number, since it uses less digits than its factorization.

121046142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 121046142 is about 11002.0971637229. The cubic root of 121046142 is about 494.6716075103.

Adding to 121046142 its reverse (241640121), we get a palindrome (362686263).

The spelling of 121046142 in words is "one hundred twenty-one million, forty-six thousand, one hundred forty-two".