1301331203 has 4 divisors (see below), whose sum is σ = 1302616848. Its totient is φ = 1300045560.

The previous prime is 1301331173. The next prime is 1301331209. The reversal of 1301331203 is 3021331031.

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 1301331203 - 2²² = 1297136899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301331209) 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, 641303 + ... + 643328.

It is an arithmetic number, because the mean of its divisors is an integer number (325654212).

Almost surely, 2^1301331203 is an apocalyptic number.

1301331203 is a deficient number, since it is larger than the sum of its proper divisors (1285645).

1301331203 is a wasteful number, since it uses less digits than its factorization.

1301331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285644.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1301331203 is about 36073.9684953014. The cubic root of 1301331203 is about 1091.7652855866.

Adding to 1301331203 its reverse (3021331031), we get a palindrome (4322662234).

The spelling of 1301331203 in words is "one billion, three hundred one million, three hundred thirty-one thousand, two hundred three".