2111420120 has 16 divisors (see below), whose sum is σ = 4750695360. Its totient is φ = 844568032.

The previous prime is 2111420119. The next prime is 2111420131. The reversal of 2111420120 is 210241112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2111420095 and 2111420104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26392712 + ... + 26392791.

It is an arithmetic number, because the mean of its divisors is an integer number (296918460).

Almost surely, 2^2111420120 is an apocalyptic number.

2111420120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111420120 is an abundant number, since it is smaller than the sum of its proper divisors (2639275240).

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

2111420120 is a wasteful number, since it uses less digits than its factorization.

2111420120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52785514 (or 52785510 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2111420120 is about 45950.1917297415. The cubic root of 2111420120 is about 1282.8962979540.

Adding to 2111420120 its reverse (210241112), we get a palindrome (2321661232).

The spelling of 2111420120 in words is "two billion, one hundred eleven million, four hundred twenty thousand, one hundred twenty".