1313130221330 has 24 divisors (see below), whose sum is σ = 2364590466252. Its totient is φ = 525039712544.

The previous prime is 1313130221329. The next prime is 1313130221357. The reversal of 1313130221330 is 331220313131.

It can be written as a sum of positive squares in 2 ways, for example, as 1261077342529 + 52052878801 = 1122977^2 + 228151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313130221296 and 1313130221305.

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 11 ways as a sum of consecutive naturals, for example, 87786212 + ... + 87801168.

Almost surely, 2^{1313130221330} is an apocalyptic number.

1313130221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313130221330 is a deficient number, since it is larger than the sum of its proper divisors (1051460244922).

1313130221330 is an frugal number, since it uses more digits than its factorization.

1313130221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20890 (or 17927 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1313130221330 its reverse (331220313131), we get a palindrome (1644350534461).

The spelling of 1313130221330 in words is "one trillion, three hundred thirteen billion, one hundred thirty million, two hundred twenty-one thousand, three hundred thirty".