1321224030 has 96 divisors (see below), whose sum is σ = 4052625408. Its totient is φ = 292248000.

The previous prime is 1321223929. The next prime is 1321224031. The reversal of 1321224030 is 304221231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1321223994 and 1321224012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321224031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14296 + ... + 53355.

It is an arithmetic number, because the mean of its divisors is an integer number (42214848).

Almost surely, 2^1321224030 is an apocalyptic number.

1321224030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321224030 is an abundant number, since it is smaller than the sum of its proper divisors (2731401378).

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

1321224030 is a wasteful number, since it uses less digits than its factorization.

1321224030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67702 (or 67699 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1321224030 is about 36348.6455043376. The cubic root of 1321224030 is about 1097.3002748138.

Adding to 1321224030 its reverse (304221231), we get a palindrome (1625445261).

The spelling of 1321224030 in words is "one billion, three hundred twenty-one million, two hundred twenty-four thousand, thirty".