1201303451 has 4 divisors (see below), whose sum is σ = 1201384392. Its totient is φ = 1201222512.

The previous prime is 1201303447. The next prime is 1201303463. The reversal of 1201303451 is 1543031021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1201303451 - 2² = 1201303447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201303651) 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, 11105 + ... + 50258.

It is an arithmetic number, because the mean of its divisors is an integer number (300346098).

Almost surely, 2^1201303451 is an apocalyptic number.

1201303451 is a deficient number, since it is larger than the sum of its proper divisors (80941).

1201303451 is an equidigital number, since it uses as much as digits as its factorization.

1201303451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80940.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1201303451 is about 34659.8247398916. The cubic root of 1201303451 is about 1063.0431864509.

Adding to 1201303451 its reverse (1543031021), we get a palindrome (2744334472).

The spelling of 1201303451 in words is "one billion, two hundred one million, three hundred three thousand, four hundred fifty-one".