1823131020 has 24 divisors (see below), whose sum is σ = 5104767024. Its totient is φ = 486168256.

The previous prime is 1823130961. The next prime is 1823131021. The reversal of 1823131020 is 201313281.

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 7 ways as a sum of consecutive naturals, for example, 15192699 + ... + 15192818.

It is an arithmetic number, because the mean of its divisors is an integer number (212698626).

Almost surely, 2^1823131020 is an apocalyptic number.

1823131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1823131020 is an abundant number, since it is smaller than the sum of its proper divisors (3281636004).

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

1823131020 is a wasteful number, since it uses less digits than its factorization.

1823131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30385529 (or 30385527 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1823131020 is about 42698.1383669124. The cubic root of 1823131020 is about 1221.6288866576.

The spelling of 1823131020 in words is "one billion, eight hundred twenty-three million, one hundred thirty-one thousand, twenty".