121142140013 has 4 divisors (see below), whose sum is σ = 121145764320. Its totient is φ = 121138515708.

The previous prime is 121142140003. The next prime is 121142140073. The reversal of 121142140013 is 310041241121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121142140013 - 2¹⁸ = 121141877869 is a prime.

It is a super-3 number, since 3×121142140013³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121142140003) 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, 1761545 + ... + 1829022.

It is an arithmetic number, because the mean of its divisors is an integer number (30286441080).

Almost surely, 2^121142140013 is an apocalyptic number.

It is an amenable number.

121142140013 is a deficient number, since it is larger than the sum of its proper divisors (3624307).

121142140013 is an equidigital number, since it uses as much as digits as its factorization.

121142140013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624306.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121142140013 its reverse (310041241121), we get a palindrome (431183381134).

The spelling of 121142140013 in words is "one hundred twenty-one billion, one hundred forty-two million, one hundred forty thousand, thirteen".