140420444433013 has 4 divisors (see below), whose sum is σ = 140422789249600. Its totient is φ = 140418099616428.

The previous prime is 140420444432999. The next prime is 140420444433047. The reversal of 140420444433013 is 310334444024041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140420444433013 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 (140420444473013) 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, 1172318463 + ... + 1172438236.

It is an arithmetic number, because the mean of its divisors is an integer number (35105697312400).

Almost surely, 2^{140420444433013} is an apocalyptic number.

It is an amenable number.

140420444433013 is a deficient number, since it is larger than the sum of its proper divisors (2344816587).

140420444433013 is an equidigital number, since it uses as much as digits as its factorization.

140420444433013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344816586.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 140420444433013 its reverse (310334444024041), we get a palindrome (450754888457054).

The spelling of 140420444433013 in words is "one hundred forty trillion, four hundred twenty billion, four hundred forty-four million, four hundred thirty-three thousand, thirteen".