121403042 has 8 divisors (see below), whose sum is σ = 184669632. Its totient is φ = 59846500.

The previous prime is 121403041. The next prime is 121403053. The reversal of 121403042 is 240304121.

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 121403042.

It is not an unprimeable number, because it can be changed into a prime (121403041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427334 + ... + 427617.

It is an arithmetic number, because the mean of its divisors is an integer number (23083704).

Almost surely, 2^121403042 is an apocalyptic number.

121403042 is a deficient number, since it is larger than the sum of its proper divisors (63266590).

121403042 is an equidigital number, since it uses as much as digits as its factorization.

121403042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855024.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121403042 is about 11018.3048605491. The cubic root of 121403042 is about 495.1573040172.

Adding to 121403042 its reverse (240304121), we get a palindrome (361707163).

The spelling of 121403042 in words is "one hundred twenty-one million, four hundred three thousand, forty-two".