920111001819 has 16 divisors (see below), whose sum is σ = 1242919820064. Its totient is φ = 605393568000.

The previous prime is 920111001757. The next prime is 920111001833. The reversal of 920111001819 is 918100111029.

It is not a de Polignac number, because 920111001819 - 2³⁵ = 885751263451 is a prime.

It is a super-2 number, since 2×920111001819² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 920111001819.

It is not an unprimeable number, because it can be changed into a prime (920111001839) 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 15 ways as a sum of consecutive naturals, for example, 4756072 + ... + 4945749.

It is an arithmetic number, because the mean of its divisors is an integer number (77682488754).

Almost surely, 2^920111001819 is an apocalyptic number.

920111001819 is a deficient number, since it is larger than the sum of its proper divisors (322808818245).

920111001819 is a wasteful number, since it uses less digits than its factorization.

920111001819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702238.

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 920111001819 in words is "nine hundred twenty billion, one hundred eleven million, one thousand, eight hundred nineteen".