140123312342443 has 32 divisors (see below), whose sum is σ = 144233286792192. Its totient is φ = 136085237904000.

The previous prime is 140123312342411. The next prime is 140123312342479. The reversal of 140123312342443 is 344243213321041.

It is a cyclic number.

It is not a de Polignac number, because 140123312342443 - 2⁵ = 140123312342411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140123312342483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2068726005 + ... + 2068793737.

It is an arithmetic number, because the mean of its divisors is an integer number (4507290212256).

Almost surely, 2^{140123312342443} is an apocalyptic number.

140123312342443 is a deficient number, since it is larger than the sum of its proper divisors (4109974449749).

140123312342443 is a wasteful number, since it uses less digits than its factorization.

140123312342443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69195.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 140123312342443 its reverse (344243213321041), we get a palindrome (484366525663484).

The spelling of 140123312342443 in words is "one hundred forty trillion, one hundred twenty-three billion, three hundred twelve million, three hundred forty-two thousand, four hundred forty-three".