1303426731 has 16 divisors (see below), whose sum is σ = 1748340864. Its totient is φ = 863748864.

The previous prime is 1303426699. The next prime is 1303426739. The reversal of 1303426731 is 1376243031.

It is not a de Polignac number, because 1303426731 - 2⁵ = 1303426699 is a prime.

It is a super-2 number, since 2×1303426731² = 3397842486170692722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303426739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365700 + ... + 369246.

It is an arithmetic number, because the mean of its divisors is an integer number (109271304).

Almost surely, 2^1303426731 is an apocalyptic number.

1303426731 is a deficient number, since it is larger than the sum of its proper divisors (444914133).

1303426731 is a wasteful number, since it uses less digits than its factorization.

1303426731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 1303426731 is about 36103.0016896102. The cubic root of 1303426731 is about 1092.3509929486.

Adding to 1303426731 its reverse (1376243031), we get a palindrome (2679669762).

The spelling of 1303426731 in words is "one billion, three hundred three million, four hundred twenty-six thousand, seven hundred thirty-one".