1342021231 has 8 divisors (see below), whose sum is σ = 1352556800. Its totient is φ = 1331498520.

The previous prime is 1342021223. The next prime is 1342021237. The reversal of 1342021231 is 1321202431.

It is a happy number.

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 1342021231 - 2³ = 1342021223 is a prime.

It is a super-2 number, since 2×1342021231² = 3602041968909510722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1342021199 and 1342021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342021237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367786 + ... + 371416.

It is an arithmetic number, because the mean of its divisors is an integer number (169069600).

Almost surely, 2^1342021231 is an apocalyptic number.

1342021231 is a deficient number, since it is larger than the sum of its proper divisors (10535569).

1342021231 is a wasteful number, since it uses less digits than its factorization.

1342021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1342021231 is about 36633.6079440723. The cubic root of 1342021231 is about 1103.0278099320.

Adding to 1342021231 its reverse (1321202431), we get a palindrome (2663223662).

The spelling of 1342021231 in words is "one billion, three hundred forty-two million, twenty-one thousand, two hundred thirty-one".