121453441111142 has 16 divisors (see below), whose sum is σ = 208209392869920. Its totient is φ = 52050601306368.

The previous prime is 121453441111133. The next prime is 121453441111157. The reversal of 121453441111142 is 241111144354121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71923517 + ... + 73592792.

It is an arithmetic number, because the mean of its divisors is an integer number (13013087054370).

Almost surely, 2^{121453441111142} is an apocalyptic number.

121453441111142 is a deficient number, since it is larger than the sum of its proper divisors (86755951758778).

121453441111142 is a wasteful number, since it uses less digits than its factorization.

121453441111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145575935.

The product of its digits is 15360, while the sum is 35.

Adding to 121453441111142 its reverse (241111144354121), we get a palindrome (362564585465263).

The spelling of 121453441111142 in words is "one hundred twenty-one trillion, four hundred fifty-three billion, four hundred forty-one million, one hundred eleven thousand, one hundred forty-two".