1202421443 has 4 divisors (see below), whose sum is σ = 1203449448. Its totient is φ = 1201393440.

The previous prime is 1202421433. The next prime is 1202421469. The reversal of 1202421443 is 3441242021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202421443 - 2⁶ = 1202421379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202421413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512246 + ... + 514587.

It is an arithmetic number, because the mean of its divisors is an integer number (300862362).

Almost surely, 2^1202421443 is an apocalyptic number.

1202421443 is a deficient number, since it is larger than the sum of its proper divisors (1028005).

1202421443 is a wasteful number, since it uses less digits than its factorization.

1202421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028004.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1202421443 is about 34675.9490569472. The cubic root of 1202421443 is about 1063.3728576048.

Adding to 1202421443 its reverse (3441242021), we get a palindrome (4643663464).

The spelling of 1202421443 in words is "one billion, two hundred two million, four hundred twenty-one thousand, four hundred forty-three".