2123401120 has 24 divisors (see below), whose sum is σ = 5016535524. Its totient is φ = 849360384.

The previous prime is 2123401087. The next prime is 2123401121. The reversal of 2123401120 is 211043212.

It can be written as a sum of positive squares in 2 ways, for example, as 2116368016 + 7033104 = 46004^2 + 2652^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2123401094 and 2123401103.

It is not an unprimeable number, because it can be changed into a prime (2123401121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6635469 + ... + 6635788.

Almost surely, 2^2123401120 is an apocalyptic number.

2123401120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123401120 is an abundant number, since it is smaller than the sum of its proper divisors (2893134404).

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

2123401120 is a wasteful number, since it uses less digits than its factorization.

2123401120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271272 (or 13271264 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2123401120 is about 46080.3767345711. The cubic root of 2123401120 is about 1285.3182696631.

Adding to 2123401120 its reverse (211043212), we get a palindrome (2334444332).

The spelling of 2123401120 in words is "two billion, one hundred twenty-three million, four hundred one thousand, one hundred twenty".