1342041021 has 16 divisors (see below), whose sum is σ = 2017886400. Its totient is φ = 881339184.

The previous prime is 1342041017. The next prime is 1342041031. The reversal of 1342041021 is 1201402431.

It is not a de Polignac number, because 1342041021 - 2² = 1342041017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1342040985 and 1342041003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342041031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369126 + ... + 372743.

It is an arithmetic number, because the mean of its divisors is an integer number (126117900).

Almost surely, 2^1342041021 is an apocalyptic number.

It is an amenable number.

1342041021 is a deficient number, since it is larger than the sum of its proper divisors (675845379).

1342041021 is an equidigital number, since it uses as much as digits as its factorization.

1342041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741945 (or 741939 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1342041021 is about 36633.8780502420. The cubic root of 1342041021 is about 1103.0332318068.

Adding to 1342041021 its reverse (1201402431), we get a palindrome (2543443452).

The spelling of 1342041021 in words is "one billion, three hundred forty-two million, forty-one thousand, twenty-one".