1342121321 has 8 divisors (see below), whose sum is σ = 1445156640. Its totient is φ = 1241762368.

The previous prime is 1342121317. The next prime is 1342121351. The reversal of 1342121321 is 1231212431.

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 1342121321 - 2² = 1342121317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1342121293 and 1342121302.

It is not an unprimeable number, because it can be changed into a prime (1342121351) 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, 668051 + ... + 670056.

It is an arithmetic number, because the mean of its divisors is an integer number (180644580).

Almost surely, 2^1342121321 is an apocalyptic number.

It is an amenable number.

1342121321 is a deficient number, since it is larger than the sum of its proper divisors (103035319).

1342121321 is a wasteful number, since it uses less digits than its factorization.

1342121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338183.

The product of its digits is 288, while the sum is 20.

The square root of 1342121321 is about 36634.9740139119. The cubic root of 1342121321 is about 1103.0552310851.

Adding to 1342121321 its reverse (1231212431), we get a palindrome (2573333752).

The spelling of 1342121321 in words is "one billion, three hundred forty-two million, one hundred twenty-one thousand, three hundred twenty-one".