1303130121 has 16 divisors (see below), whose sum is σ = 1889437824. Its totient is φ = 795550464.

The previous prime is 1303130117. The next prime is 1303130123. The reversal of 1303130121 is 1210313031.

It is not a de Polignac number, because 1303130121 - 2² = 1303130117 is a prime.

It is a super-2 number, since 2×1303130121² = 3396296224514949282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303130121.

It is not an unprimeable number, because it can be changed into a prime (1303130123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343405 + ... + 347178.

It is an arithmetic number, because the mean of its divisors is an integer number (118089864).

Almost surely, 2^1303130121 is an apocalyptic number.

It is an amenable number.

1303130121 is a deficient number, since it is larger than the sum of its proper divisors (586307703).

1303130121 is a wasteful number, since it uses less digits than its factorization.

1303130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690640.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1303130121 is about 36098.8936257055. The cubic root of 1303130121 is about 1092.2681275804.

Adding to 1303130121 its reverse (1210313031), we get a palindrome (2513443152).

The spelling of 1303130121 in words is "one billion, three hundred three million, one hundred thirty thousand, one hundred twenty-one".