1321202030 has 16 divisors (see below), whose sum is σ = 2381657904. Its totient is φ = 527704320.

The previous prime is 1321202027. The next prime is 1321202059. The reversal of 1321202030 is 302021231.

It is a happy number.

It is a super-2 number, since 2×1321202030² = 3491149608152241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321201996 and 1321202014.

It is a congruent number.

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, 89891 + ... + 103550.

It is an arithmetic number, because the mean of its divisors is an integer number (148853619).

Almost surely, 2^1321202030 is an apocalyptic number.

1321202030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321202030 is a deficient number, since it is larger than the sum of its proper divisors (1060455874).

1321202030 is a wasteful number, since it uses less digits than its factorization.

1321202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194131.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1321202030 is about 36348.3428783212. The cubic root of 1321202030 is about 1097.2941843150.

Adding to 1321202030 its reverse (302021231), we get a palindrome (1623223261).

The spelling of 1321202030 in words is "one billion, three hundred twenty-one million, two hundred two thousand, thirty".