10182020991 has 4 divisors (see below), whose sum is σ = 13576027992. Its totient is φ = 6788013992.

The previous prime is 10182020971. The next prime is 10182020999. The reversal of 10182020991 is 19902028101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10182020991 - 2¹⁴ = 10182004607 is a prime.

It is a super-2 number, since 2×10182020991² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10182020999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697003496 + ... + 1697003501.

It is an arithmetic number, because the mean of its divisors is an integer number (3394006998).

Almost surely, 2^10182020991 is an apocalyptic number.

10182020991 is a deficient number, since it is larger than the sum of its proper divisors (3394007001).

10182020991 is an equidigital number, since it uses as much as digits as its factorization.

10182020991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394007000.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 10182020991 in words is "ten billion, one hundred eighty-two million, twenty thousand, nine hundred ninety-one".