1823131081 has 16 divisors (see below), whose sum is σ = 1978237440. Its totient is φ = 1676203200.

The previous prime is 1823131067. The next prime is 1823131097. The reversal of 1823131081 is 1801313281.

It is a cyclic number.

It is not a de Polignac number, because 1823131081 - 2¹⁷ = 1823000009 is a prime.

It is a super-2 number, since 2×1823131081² = 6647613877016457122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1823131021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32356 + ... + 68506.

It is an arithmetic number, because the mean of its divisors is an integer number (123639840).

Almost surely, 2^1823131081 is an apocalyptic number.

It is an amenable number.

1823131081 is a deficient number, since it is larger than the sum of its proper divisors (155106359).

1823131081 is a wasteful number, since it uses less digits than its factorization.

1823131081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36264.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1823131081 is about 42698.1390812293. The cubic root of 1823131081 is about 1221.6289002824.

The spelling of 1823131081 in words is "one billion, eight hundred twenty-three million, one hundred thirty-one thousand, eighty-one".