1820030033011 has 16 divisors (see below), whose sum is σ = 1917552349440. Its totient is φ = 1722681557280.

The previous prime is 1820030032993. The next prime is 1820030033023. The reversal of 1820030033011 is 1103300300281.

It is a cyclic number.

It is not a de Polignac number, because 1820030033011 - 2⁵ = 1820030032979 is a prime.

It is a super-2 number, since 2×1820030033011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820000033011) 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, 127777056 + ... + 127791298.

It is an arithmetic number, because the mean of its divisors is an integer number (119847021840).

Almost surely, 2^{1820030033011} is an apocalyptic number.

1820030033011 is a deficient number, since it is larger than the sum of its proper divisors (97522316429).

1820030033011 is a wasteful number, since it uses less digits than its factorization.

1820030033011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19866.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1820030033011 its reverse (1103300300281), we get a palindrome (2923330333292).

The spelling of 1820030033011 in words is "one trillion, eight hundred twenty billion, thirty million, thirty-three thousand, eleven".