11020103121985 has 8 divisors (see below), whose sum is σ = 13245909785856. Its totient is φ = 8801558471280.

The previous prime is 11020103121961. The next prime is 11020103122009. The reversal of 11020103121985 is 58912130102011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11020103121961) and next prime (11020103122009).

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

It is not a de Polignac number, because 11020103121985 - 2⁷ = 11020103121857 is a prime.

It is a super-3 number, since 3×11020103121985³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11020103121985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815499951 + ... + 1815506020.

It is an arithmetic number, because the mean of its divisors is an integer number (1655738723232).

Almost surely, 2^{11020103121985} is an apocalyptic number.

It is an amenable number.

11020103121985 is a deficient number, since it is larger than the sum of its proper divisors (2225806663871).

11020103121985 is an equidigital number, since it uses as much as digits as its factorization.

11020103121985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631006583.

The product of its (nonzero) digits is 4320, while the sum is 34.

Adding to 11020103121985 its reverse (58912130102011), we get a palindrome (69932233223996).

The spelling of 11020103121985 in words is "eleven trillion, twenty billion, one hundred three million, one hundred twenty-one thousand, nine hundred eighty-five".