11001001420 has 48 divisors (see below), whose sum is σ = 23735255040. Its totient is φ = 4280924864.

The previous prime is 11001001397. The next prime is 11001001423. The reversal of 11001001420 is 2410010011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11001001397 and 11001001406.

It is not an unprimeable number, because it can be changed into a prime (11001001423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121941 + ... + 192019.

It is an arithmetic number, because the mean of its divisors is an integer number (494484480).

Almost surely, 2^11001001420 is an apocalyptic number.

11001001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001001420 is an abundant number, since it is smaller than the sum of its proper divisors (12734253620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001001420 is a wasteful number, since it uses less digits than its factorization.

11001001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70302 (or 70300 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11001001420 its reverse (2410010011), we get a palindrome (13411011431).

The spelling of 11001001420 in words is "eleven billion, one million, one thousand, four hundred twenty".