140312351423 has 4 divisors (see below), whose sum is σ = 140593539000. Its totient is φ = 140031163848.

The previous prime is 140312351353. The next prime is 140312351447. The reversal of 140312351423 is 324153213041.

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 140312351423 - 2¹² = 140312347327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140312356423) 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, 140593040 + ... + 140594037.

It is an arithmetic number, because the mean of its divisors is an integer number (35148384750).

Almost surely, 2^140312351423 is an apocalyptic number.

140312351423 is a deficient number, since it is larger than the sum of its proper divisors (281187577).

140312351423 is an equidigital number, since it uses as much as digits as its factorization.

140312351423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281187576.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 140312351423 its reverse (324153213041), we get a palindrome (464465564464).

The spelling of 140312351423 in words is "one hundred forty billion, three hundred twelve million, three hundred fifty-one thousand, four hundred twenty-three".