1201422443 has 4 divisors (see below), whose sum is σ = 1293839568. Its totient is φ = 1109005320.

The previous prime is 1201422437. The next prime is 1201422461. The reversal of 1201422443 is 3442241021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3442241021 = 4391 ⋅783931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201422443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201422463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46208543 + ... + 46208568.

It is an arithmetic number, because the mean of its divisors is an integer number (323459892).

Almost surely, 2^1201422443 is an apocalyptic number.

1201422443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201422443 is a deficient number, since it is larger than the sum of its proper divisors (92417125).

1201422443 is an equidigital number, since it uses as much as digits as its factorization.

1201422443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92417124.

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

The square root of 1201422443 is about 34661.5412669431. The cubic root of 1201422443 is about 1063.0782842880.

Adding to 1201422443 its reverse (3442241021), we get a palindrome (4643663464).

The spelling of 1201422443 in words is "one billion, two hundred one million, four hundred twenty-two thousand, four hundred forty-three".