1401431042239 has 4 divisors (see below), whose sum is σ = 1401438097656. Its totient is φ = 1401423986824.

The previous prime is 1401431042201. The next prime is 1401431042293. The reversal of 1401431042239 is 9322401341041.

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-1401431042239 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 (1401431040239) 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, 3220864 + ... + 3629989.

It is an arithmetic number, because the mean of its divisors is an integer number (350359524414).

Almost surely, 2^{1401431042239} is an apocalyptic number.

1401431042239 is a deficient number, since it is larger than the sum of its proper divisors (7055417).

1401431042239 is an equidigital number, since it uses as much as digits as its factorization.

1401431042239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055416.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 1401431042239 in words is "one trillion, four hundred one billion, four hundred thirty-one million, forty-two thousand, two hundred thirty-nine".