1303123131 has 12 divisors (see below), whose sum is σ = 1928199000. Its totient is φ = 847559520.

The previous prime is 1303123111. The next prime is 1303123139. The reversal of 1303123131 is 1313213031.

It is a happy number.

1303123131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1303123131 - 2¹⁷ = 1302992059 is a prime.

It is a super-2 number, since 2×1303123131² = 3396259789094486322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303123139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1765381 + ... + 1766118.

It is an arithmetic number, because the mean of its divisors is an integer number (160683250).

Almost surely, 2^1303123131 is an apocalyptic number.

1303123131 is a deficient number, since it is larger than the sum of its proper divisors (625075869).

1303123131 is a wasteful number, since it uses less digits than its factorization.

1303123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531546 (or 3531543 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1303123131 is about 36098.7968082040. The cubic root of 1303123131 is about 1092.2661745987.

Adding to 1303123131 its reverse (1313213031), we get a palindrome (2616336162).

The spelling of 1303123131 in words is "one billion, three hundred three million, one hundred twenty-three thousand, one hundred thirty-one".