1378000139723 has 4 divisors (see below), whose sum is σ = 1407319291680. Its totient is φ = 1348680987768.

The previous prime is 1378000139707. The next prime is 1378000139729. The reversal of 1378000139723 is 3279310008731.

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

It is a cyclic number.

It is not a de Polignac number, because 1378000139723 - 2⁴ = 1378000139707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378000139729) 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, 14659575908 + ... + 14659576001.

It is an arithmetic number, because the mean of its divisors is an integer number (351829822920).

Almost surely, 2^{1378000139723} is an apocalyptic number.

1378000139723 is a deficient number, since it is larger than the sum of its proper divisors (29319151957).

1378000139723 is an equidigital number, since it uses as much as digits as its factorization.

1378000139723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29319151956.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 1378000139723 in words is "one trillion, three hundred seventy-eight billion, one hundred thirty-nine thousand, seven hundred twenty-three".