1313271850 has 24 divisors (see below), whose sum is σ = 2664749088. Its totient is φ = 477553200.

The previous prime is 1313271823. The next prime is 1313271851. The reversal of 1313271850 is 581723131.

It is not an unprimeable number, because it can be changed into a prime (1313271851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1193334 + ... + 1194433.

It is an arithmetic number, because the mean of its divisors is an integer number (111031212).

Almost surely, 2^1313271850 is an apocalyptic number.

1313271850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313271850 is an abundant number, since it is smaller than the sum of its proper divisors (1351477238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313271850 is a wasteful number, since it uses less digits than its factorization.

1313271850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387790 (or 2387785 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1313271850 is about 36239.0928418469. The cubic root of 1313271850 is about 1095.0943671582.

Adding to 1313271850 its reverse (581723131), we get a palindrome (1894994981).

The spelling of 1313271850 in words is "one billion, three hundred thirteen million, two hundred seventy-one thousand, eight hundred fifty".