1313821092 has 24 divisors (see below), whose sum is σ = 3071740000. Its totient is φ = 437060736.

The previous prime is 1313821087. The next prime is 1313821121. The reversal of 1313821092 is 2901283131.

It is a super-2 number, since 2×1313821092² = 3452251723568144928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103717 + ... + 115692.

Almost surely, 2^1313821092 is an apocalyptic number.

1313821092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313821092 is an abundant number, since it is smaller than the sum of its proper divisors (1757918908).

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

1313821092 is a wasteful number, since it uses less digits than its factorization.

1313821092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219915 (or 219913 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1313821092 is about 36246.6700815399. The cubic root of 1313821092 is about 1095.2470108499.

The spelling of 1313821092 in words is "one billion, three hundred thirteen million, eight hundred twenty-one thousand, ninety-two".