2123041120400 has 60 divisors (see below), whose sum is σ = 5100774861732. Its totient is φ = 849188382720.

The previous prime is 2123041120393. The next prime is 2123041120457. The reversal of 2123041120400 is 40211403212.

It can be written as a sum of positive squares in 6 ways, for example, as 225116087296 + 1897925033104 = 474464^2 + 1377652^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15480932 + ... + 15617468.

Almost surely, 2^{2123041120400} is an apocalyptic number.

2123041120400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123041120400 is an abundant number, since it is smaller than the sum of its proper divisors (2977733741332).

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

2123041120400 is a wasteful number, since it uses less digits than its factorization.

2123041120400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175428 (or 175417 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2123041120400 its reverse (40211403212), we get a palindrome (2163252523612).

The spelling of 2123041120400 in words is "two trillion, one hundred twenty-three billion, forty-one million, one hundred twenty thousand, four hundred".