1388421832011 has 8 divisors (see below), whose sum is σ = 1852503188880. Its totient is φ = 924977514912.

The previous prime is 1388421832001. The next prime is 1388421832027. The reversal of 1388421832011 is 1102381248831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1388421832011 - 2⁹ = 1388421831499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1388421832001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159254856 + ... + 159263573.

It is an arithmetic number, because the mean of its divisors is an integer number (231562898610).

Almost surely, 2^{1388421832011} is an apocalyptic number.

1388421832011 is a deficient number, since it is larger than the sum of its proper divisors (464081356869).

1388421832011 is a wasteful number, since it uses less digits than its factorization.

1388421832011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318519885.

The product of its (nonzero) digits is 73728, while the sum is 42.

The spelling of 1388421832011 in words is "one trillion, three hundred eighty-eight billion, four hundred twenty-one million, eight hundred thirty-two thousand, eleven".