140244126431 has 2 divisors, whose sum is σ = 140244126432. Its totient is φ = 140244126430.

The previous prime is 140244126419. The next prime is 140244126457. The reversal of 140244126431 is 134621442041.

It is a weak prime.

It is an emirp because it is prime and its reverse (134621442041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140244126431 - 2⁶ = 140244126367 is a prime.

It is a super-2 number, since 2×140244126431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140244126731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70122063215 + 70122063216.

It is an arithmetic number, because the mean of its divisors is an integer number (70122063216).

Almost surely, 2^140244126431 is an apocalyptic number.

140244126431 is a deficient number, since it is larger than the sum of its proper divisors (1).

140244126431 is an equidigital number, since it uses as much as digits as its factorization.

140244126431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 140244126431 its reverse (134621442041), we get a palindrome (274865568472).

The spelling of 140244126431 in words is "one hundred forty billion, two hundred forty-four million, one hundred twenty-six thousand, four hundred thirty-one".