1820100010111 has 8 divisors (see below), whose sum is σ = 1836868723200. Its totient is φ = 1803403112352.

The previous prime is 1820100010097. The next prime is 1820100010133. The reversal of 1820100010111 is 1110100010281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1820100010111 - 2²¹ = 1820097912959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820100010151) 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, 17902911 + ... + 18004288.

It is an arithmetic number, because the mean of its divisors is an integer number (229608590400).

Almost surely, 2^{1820100010111} is an apocalyptic number.

1820100010111 is a deficient number, since it is larger than the sum of its proper divisors (16768713089).

1820100010111 is a wasteful number, since it uses less digits than its factorization.

1820100010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35907665.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1820100010111 its reverse (1110100010281), we get a palindrome (2930200020392).

The spelling of 1820100010111 in words is "one trillion, eight hundred twenty billion, one hundred million, ten thousand, one hundred eleven".