1303221234 has 16 divisors (see below), whose sum is σ = 2978791488. Its totient is φ = 372348912.

The previous prime is 1303221223. The next prime is 1303221247. The reversal of 1303221234 is 4321223031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1303221234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15514497 + ... + 15514580.

It is an arithmetic number, because the mean of its divisors is an integer number (186174468).

Almost surely, 2^1303221234 is an apocalyptic number.

1303221234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1303221234 is an abundant number, since it is smaller than the sum of its proper divisors (1675570254).

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

1303221234 is a wasteful number, since it uses less digits than its factorization.

1303221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029089.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1303221234 is about 36100.1555952326. The cubic root of 1303221234 is about 1092.2935835972.

Adding to 1303221234 its reverse (4321223031), we get a palindrome (5624444265).

The spelling of 1303221234 in words is "one billion, three hundred three million, two hundred twenty-one thousand, two hundred thirty-four".