140210444431 has 4 divisors (see below), whose sum is σ = 140563619752. Its totient is φ = 139857269112.

The previous prime is 140210444327. The next prime is 140210444447. The reversal of 140210444431 is 134444012041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134444012041 = 191 ⋅703895351.

It is a cyclic number.

It is not a de Polignac number, because 140210444431 - 2¹⁷ = 140210313359 is a prime.

It is a super-2 number, since 2×140210444431² (a number of 23 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 140210444431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140210444471) 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, 176587065 + ... + 176587858.

It is an arithmetic number, because the mean of its divisors is an integer number (35140904938).

Almost surely, 2^140210444431 is an apocalyptic number.

140210444431 is a deficient number, since it is larger than the sum of its proper divisors (353175321).

140210444431 is an equidigital number, since it uses as much as digits as its factorization.

140210444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353175320.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 140210444431 its reverse (134444012041), we get a palindrome (274654456472).

The spelling of 140210444431 in words is "one hundred forty billion, two hundred ten million, four hundred forty-four thousand, four hundred thirty-one".