140230400123431 has 4 divisors (see below), whose sum is σ = 145065931162200. Its totient is φ = 135394869084664.

The previous prime is 140230400123351. The next prime is 140230400123441. The reversal of 140230400123431 is 134321004032041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140230400123431 is a prime.

It is a super-2 number, since 2×140230400123431² (a number of 29 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 140230400123431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140230400123441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417765519341 + ... + 2417765519398.

It is an arithmetic number, because the mean of its divisors is an integer number (36266482790550).

Almost surely, 2^{140230400123431} is an apocalyptic number.

140230400123431 is a deficient number, since it is larger than the sum of its proper divisors (4835531038769).

140230400123431 is an equidigital number, since it uses as much as digits as its factorization.

140230400123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835531038768.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 140230400123431 its reverse (134321004032041), we get a palindrome (274551404155472).

The spelling of 140230400123431 in words is "one hundred forty trillion, two hundred thirty billion, four hundred million, one hundred twenty-three thousand, four hundred thirty-one".