1313121130 has 32 divisors (see below), whose sum is σ = 2395299600. Its totient is φ = 518234112.

The previous prime is 1313121127. The next prime is 1313121181. The reversal of 1313121130 is 311213131.

It can be written as a sum of positive squares in 8 ways, for example, as 215590489 + 1097530641 = 14683^2 + 33129^2 .

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, 505114 + ... + 507706.

Almost surely, 2^1313121130 is an apocalyptic number.

1313121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313121130 is a deficient number, since it is larger than the sum of its proper divisors (1082178470).

1313121130 is a wasteful number, since it uses less digits than its factorization.

1313121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1313121130 is about 36237.0132599253. The cubic root of 1313121130 is about 1095.0524720656.

Adding to 1313121130 its reverse (311213131), we get a palindrome (1624334261).

The spelling of 1313121130 in words is "one billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred thirty".