1303021212 has 12 divisors (see below), whose sum is σ = 3040382856. Its totient is φ = 434340400.

The previous prime is 1303021189. The next prime is 1303021249. The reversal of 1303021212 is 2121203031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1303021191 and 1303021200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54292539 + ... + 54292562.

It is an arithmetic number, because the mean of its divisors is an integer number (253365238).

Almost surely, 2^1303021212 is an apocalyptic number.

1303021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1303021212 is an abundant number, since it is smaller than the sum of its proper divisors (1737361644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303021212 is a wasteful number, since it uses less digits than its factorization.

1303021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108585108 (or 108585106 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1303021212 is about 36097.3851130522. The cubic root of 1303021212 is about 1092.2376979910.

Adding to 1303021212 its reverse (2121203031), we get a palindrome (3424224243).

The spelling of 1303021212 in words is "one billion, three hundred three million, twenty-one thousand, two hundred twelve".