121411321042 has 16 divisors (see below), whose sum is σ = 203293376352. Its totient is φ = 53903545920.

The previous prime is 121411321027. The next prime is 121411321049. The reversal of 121411321042 is 240123114121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (121411321049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64169943 + ... + 64171834.

It is an arithmetic number, because the mean of its divisors is an integer number (12705836022).

Almost surely, 2^121411321042 is an apocalyptic number.

121411321042 is a deficient number, since it is larger than the sum of its proper divisors (81882055310).

121411321042 is a wasteful number, since it uses less digits than its factorization.

121411321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128341833.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121411321042 its reverse (240123114121), we get a palindrome (361534435163).

The spelling of 121411321042 in words is "one hundred twenty-one billion, four hundred eleven million, three hundred twenty-one thousand, forty-two".