1303213331 has 16 divisors (see below), whose sum is σ = 1527180480. Its totient is φ = 1088747520.

The previous prime is 1303213291. The next prime is 1303213361. The reversal of 1303213331 is 1333123031.

It is not a de Polignac number, because 1303213331 - 2⁶ = 1303213267 is a prime.

It is a super-2 number, since 2×1303213331² = 3396729972192231122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303213361) 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, 489155 + ... + 491811.

It is an arithmetic number, because the mean of its divisors is an integer number (95448780).

Almost surely, 2^1303213331 is an apocalyptic number.

1303213331 is a deficient number, since it is larger than the sum of its proper divisors (223967149).

1303213331 is a wasteful number, since it uses less digits than its factorization.

1303213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1303213331 is about 36100.0461357046. The cubic root of 1303213331 is about 1092.2913756289.

Adding to 1303213331 its reverse (1333123031), we get a palindrome (2636336362).

The spelling of 1303213331 in words is "one billion, three hundred three million, two hundred thirteen thousand, three hundred thirty-one".