1320312121130 has 32 divisors (see below), whose sum is σ = 2516428789776. Its totient is φ = 497045008384.

The previous prime is 1320312121129. The next prime is 1320312121151. The reversal of 1320312121130 is 311212130231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 772547828809 + 547764292321 = 878947^2 + 740111^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7814102 + ... + 7981278.

Almost surely, 2^{1320312121130} is an apocalyptic number.

1320312121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320312121130 is a deficient number, since it is larger than the sum of its proper divisors (1196116668646).

1320312121130 is a wasteful number, since it uses less digits than its factorization.

1320312121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213658.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1320312121130 its reverse (311212130231), we get a palindrome (1631524251361).

The spelling of 1320312121130 in words is "one trillion, three hundred twenty billion, three hundred twelve million, one hundred twenty-one thousand, one hundred thirty".