2123441420 has 24 divisors (see below), whose sum is σ = 4653107424. Its totient is φ = 812446976.

The previous prime is 2123441417. The next prime is 2123441431. The reversal of 2123441420 is 241443212.

It is a super-3 number, since 3×2123441420³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307629 + ... + 2308548.

It is an arithmetic number, because the mean of its divisors is an integer number (193879476).

Almost surely, 2^2123441420 is an apocalyptic number.

2123441420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123441420 is an abundant number, since it is smaller than the sum of its proper divisors (2529666004).

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

2123441420 is a wasteful number, since it uses less digits than its factorization.

2123441420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616209 (or 4616207 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2123441420 is about 46080.8140119074. The cubic root of 2123441420 is about 1285.3264009574.

Adding to 2123441420 its reverse (241443212), we get a palindrome (2364884632).

The spelling of 2123441420 in words is "two billion, one hundred twenty-three million, four hundred forty-one thousand, four hundred twenty".