1231301203 has 12 divisors (see below), whose sum is σ = 1354381560. Its totient is φ = 1118564480.

The previous prime is 1231301119. The next prime is 1231301209. The reversal of 1231301203 is 3021031321.

It is not a de Polignac number, because 1231301203 - 2²¹ = 1229204051 is a prime.

It is a super-2 number, since 2×1231301203² = 3032205305018494418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231301209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225876 + ... + 231262.

It is an arithmetic number, because the mean of its divisors is an integer number (112865130).

Almost surely, 2^1231301203 is an apocalyptic number.

1231301203 is a deficient number, since it is larger than the sum of its proper divisors (123080357).

1231301203 is a wasteful number, since it uses less digits than its factorization.

1231301203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298 (or 7287 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1231301203 is about 35089.9017240003. The cubic root of 1231301203 is about 1071.8189583792.

Adding to 1231301203 its reverse (3021031321), we get a palindrome (4252332524).

The spelling of 1231301203 in words is "one billion, two hundred thirty-one million, three hundred one thousand, two hundred three".