140240343223 has 2 divisors, whose sum is σ = 140240343224. Its totient is φ = 140240343222.

The previous prime is 140240343211. The next prime is 140240343241. The reversal of 140240343223 is 322343042041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140240343223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140240343191 and 140240343200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140240343253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70120171611 + 70120171612.

It is an arithmetic number, because the mean of its divisors is an integer number (70120171612).

Almost surely, 2^140240343223 is an apocalyptic number.

140240343223 is a deficient number, since it is larger than the sum of its proper divisors (1).

140240343223 is an equidigital number, since it uses as much as digits as its factorization.

140240343223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 140240343223 its reverse (322343042041), we get a palindrome (462583385264).

The spelling of 140240343223 in words is "one hundred forty billion, two hundred forty million, three hundred forty-three thousand, two hundred twenty-three".