1112001620 has 48 divisors (see below), whose sum is σ = 2552352768. Its totient is φ = 405127680.

The previous prime is 1112001577. The next prime is 1112001643. The reversal of 1112001620 is 261002111.

It is a junction number, because it is equal to n+sod(n) for n = 1112001595 and 1112001604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42212 + ... + 63291.

It is an arithmetic number, because the mean of its divisors is an integer number (53174016).

Almost surely, 2^1112001620 is an apocalyptic number.

1112001620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112001620 is an abundant number, since it is smaller than the sum of its proper divisors (1440351148).

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

1112001620 is a wasteful number, since it uses less digits than its factorization.

1112001620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105560 (or 105558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1112001620 is about 33346.6882913431. The cubic root of 1112001620 is about 1036.0207965792.

Adding to 1112001620 its reverse (261002111), we get a palindrome (1373003731).

The spelling of 1112001620 in words is "one billion, one hundred twelve million, one thousand, six hundred twenty".