140243223031 has 4 divisors (see below), whose sum is σ = 141689029552. Its totient is φ = 138797416512.

The previous prime is 140243223019. The next prime is 140243223041. The reversal of 140243223031 is 130322342041.

140243223031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140243223031 - 2²¹ = 140241125879 is a prime.

It is a super-2 number, since 2×140243223031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140243222987 and 140243223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140243223041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722903115 + ... + 722903308.

It is an arithmetic number, because the mean of its divisors is an integer number (35422257388).

Almost surely, 2^140243223031 is an apocalyptic number.

140243223031 is a deficient number, since it is larger than the sum of its proper divisors (1445806521).

140243223031 is an equidigital number, since it uses as much as digits as its factorization.

140243223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445806520.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 140243223031 its reverse (130322342041), we get a palindrome (270565565072).

The spelling of 140243223031 in words is "one hundred forty billion, two hundred forty-three million, two hundred twenty-three thousand, thirty-one".