1331423401 has 8 divisors (see below), whose sum is σ = 1659956544. Its totient is φ = 1037472720.

The previous prime is 1331423389. The next prime is 1331423407. The reversal of 1331423401 is 1043241331.

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 1331423401 - 2⁵ = 1331423369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331423407) 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, 8645530 + ... + 8645683.

It is an arithmetic number, because the mean of its divisors is an integer number (207494568).

Almost surely, 2^1331423401 is an apocalyptic number.

1331423401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1331423401 is a deficient number, since it is larger than the sum of its proper divisors (328533143).

1331423401 is a wasteful number, since it uses less digits than its factorization.

1331423401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17291231.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1331423401 is about 36488.6749690914. The cubic root of 1331423401 is about 1100.1166270282.

Adding to 1331423401 its reverse (1043241331), we get a palindrome (2374664732).

The spelling of 1331423401 in words is "one billion, three hundred thirty-one million, four hundred twenty-three thousand, four hundred one".