2123141640 has 64 divisors (see below), whose sum is σ = 6574901760. Its totient is φ = 547906560.

The previous prime is 2123141639. The next prime is 2123141651. The reversal of 2123141640 is 461413212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2123141640.

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, 281649 + ... + 289088.

It is an arithmetic number, because the mean of its divisors is an integer number (102732840).

Almost surely, 2^2123141640 is an apocalyptic number.

2123141640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123141640 is an abundant number, since it is smaller than the sum of its proper divisors (4451760120).

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

2123141640 is a wasteful number, since it uses less digits than its factorization.

2123141640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570782 (or 570778 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2123141640 is about 46077.5611333760. The cubic root of 2123141640 is about 1285.2659121555.

Adding to 2123141640 its reverse (461413212), we get a palindrome (2584554852).

The spelling of 2123141640 in words is "two billion, one hundred twenty-three million, one hundred forty-one thousand, six hundred forty".