1323121130 has 16 divisors (see below), whose sum is σ = 2384349480. Its totient is φ = 528641472.

The previous prime is 1323121099. The next prime is 1323121157. The reversal of 1323121130 is 311213231.

It can be written as a sum of positive squares in 4 ways, for example, as 1001026321 + 322094809 = 31639^2 + 17947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323121099 and 1323121108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66665 + ... + 84204.

Almost surely, 2^1323121130 is an apocalyptic number.

1323121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323121130 is a deficient number, since it is larger than the sum of its proper divisors (1061228350).

1323121130 is a wasteful number, since it uses less digits than its factorization.

1323121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151753.

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

The square root of 1323121130 is about 36374.7320265043. The cubic root of 1323121130 is about 1097.8252155144.

Adding to 1323121130 its reverse (311213231), we get a palindrome (1634334361).

The spelling of 1323121130 in words is "one billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred thirty".