1303212131 has 24 divisors (see below), whose sum is σ = 1514706816. Its totient is φ = 1113361920.

The previous prime is 1303212103. The next prime is 1303212167. The reversal of 1303212131 is 1312123031.

It is not a de Polignac number, because 1303212131 - 2⁶ = 1303212067 is a prime.

It is a super-2 number, since 2×1303212131² = 3396723716771122322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303214131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210131 + ... + 216243.

It is an arithmetic number, because the mean of its divisors is an integer number (63112784).

Almost surely, 2^1303212131 is an apocalyptic number.

1303212131 is a deficient number, since it is larger than the sum of its proper divisors (211494685).

1303212131 is a wasteful number, since it uses less digits than its factorization.

1303212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203 (or 6180 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1303212131 is about 36100.0295152234. The cubic root of 1303212131 is about 1092.2910403678.

Adding to 1303212131 its reverse (1312123031), we get a palindrome (2615335162).

The spelling of 1303212131 in words is "one billion, three hundred three million, two hundred twelve thousand, one hundred thirty-one".