1321000092 has 36 divisors (see below), whose sum is σ = 3340866256. Its totient is φ = 440112960.

The previous prime is 1321000081. The next prime is 1321000127. The reversal of 1321000092 is 2900001231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74073 + ... + 90159.

Almost surely, 2^1321000092 is an apocalyptic number.

1321000092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321000092 is an abundant number, since it is smaller than the sum of its proper divisors (2019866164).

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

1321000092 is a wasteful number, since it uses less digits than its factorization.

1321000092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378 (or 18373 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1321000092 is about 36345.5649564015. The cubic root of 1321000092 is about 1097.2382764679.

The spelling of 1321000092 in words is "one billion, three hundred twenty-one million, ninety-two", and thus it is an aban number.