1331422013 has 8 divisors (see below), whose sum is σ = 1343221536. Its totient is φ = 1319670000.

The previous prime is 1331422003. The next prime is 1331422067. The reversal of 1331422013 is 3102241331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331422013 - 2⁸ = 1331421757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331422003) 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, 45638 + ... + 68888.

It is an arithmetic number, because the mean of its divisors is an integer number (167902692).

Almost surely, 2^1331422013 is an apocalyptic number.

It is an amenable number.

1331422013 is a deficient number, since it is larger than the sum of its proper divisors (11799523).

1331422013 is a wasteful number, since it uses less digits than its factorization.

1331422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23755.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1331422013 is about 36488.6559494865. The cubic root of 1331422013 is about 1100.1162447400.

Adding to 1331422013 its reverse (3102241331), we get a palindrome (4433663344).

The spelling of 1331422013 in words is "one billion, three hundred thirty-one million, four hundred twenty-two thousand, thirteen".