140043144210121 has 4 divisors (see below), whose sum is σ = 140050026972112. Its totient is φ = 140036261448132.

The previous prime is 140043144210097. The next prime is 140043144210143. The reversal of 140043144210121 is 121012441340041.

It is a happy number.

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 140043144210121 - 2¹⁵ = 140043144177353 is a prime.

It is a super-2 number, since 2×140043144210121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140043144210121.

It is not an unprimeable number, because it can be changed into a prime (140043144210521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3441350475 + ... + 3441391168.

It is an arithmetic number, because the mean of its divisors is an integer number (35012506743028).

Almost surely, 2^{140043144210121} is an apocalyptic number.

It is an amenable number.

140043144210121 is a deficient number, since it is larger than the sum of its proper divisors (6882761991).

140043144210121 is an equidigital number, since it uses as much as digits as its factorization.

140043144210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882761990.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 140043144210121 its reverse (121012441340041), we get a palindrome (261055585550162).

The spelling of 140043144210121 in words is "one hundred forty trillion, forty-three billion, one hundred forty-four million, two hundred ten thousand, one hundred twenty-one".