1303223131 has 4 divisors (see below), whose sum is σ = 1489397872. Its totient is φ = 1117048392.

The previous prime is 1303223113. The next prime is 1303223149. The reversal of 1303223131 is 1313223031.

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

It is an interprime number because it is at equal distance from previous prime (1303223113) and next prime (1303223149).

It is a cyclic number.

It is not a de Polignac number, because 1303223131 - 2¹¹ = 1303221083 is a prime.

It is a super-2 number, since 2×1303223131² = 3396781058346886322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303223099 and 1303223108.

It is not an unprimeable number, because it can be changed into a prime (1303223101) 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, 93087360 + ... + 93087373.

It is an arithmetic number, because the mean of its divisors is an integer number (372349468).

Almost surely, 2^1303223131 is an apocalyptic number.

1303223131 is a deficient number, since it is larger than the sum of its proper divisors (186174741).

1303223131 is an equidigital number, since it uses as much as digits as its factorization.

1303223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186174740.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1303223131 is about 36100.1818693480. The cubic root of 1303223131 is about 1092.2941135865.

Adding to 1303223131 its reverse (1313223031), we get a palindrome (2616446162).

It can be divided in two parts, 13032 and 23131, that added together give a palindrome (36163).

The spelling of 1303223131 in words is "one billion, three hundred three million, two hundred twenty-three thousand, one hundred thirty-one".