121141342142 has 4 divisors (see below), whose sum is σ = 181712013216. Its totient is φ = 60570671070.

The previous prime is 121141342139. The next prime is 121141342213. The reversal of 121141342142 is 241243141121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241243141121 = 2039 ⋅118314439.

It is a super-3 number, since 3×121141342142³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30285335534 + ... + 30285335537.

It is an arithmetic number, because the mean of its divisors is an integer number (45428003304).

Almost surely, 2^121141342142 is an apocalyptic number.

121141342142 is a deficient number, since it is larger than the sum of its proper divisors (60570671074).

121141342142 is an equidigital number, since it uses as much as digits as its factorization.

121141342142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60570671073.

The product of its digits is 1536, while the sum is 26.

Adding to 121141342142 its reverse (241243141121), we get a palindrome (362384483263).

The spelling of 121141342142 in words is "one hundred twenty-one billion, one hundred forty-one million, three hundred forty-two thousand, one hundred forty-two".