2103140421 has 12 divisors (see below), whose sum is σ = 3119974572. Its totient is φ = 1364198976.

The previous prime is 2103140411. The next prime is 2103140437. The reversal of 2103140421 is 1240413012.

2103140421 is a `hidden beast` number, since 2 + 103 + 140 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1196468100 + 906672321 = 34590^2 + 30111^2 .

It is not a de Polignac number, because 2103140421 - 2³⁰ = 1029398597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103140394 and 2103140403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103140411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3157536 + ... + 3158201.

It is an arithmetic number, because the mean of its divisors is an integer number (259997881).

Almost surely, 2^2103140421 is an apocalyptic number.

It is an amenable number.

2103140421 is a deficient number, since it is larger than the sum of its proper divisors (1016834151).

2103140421 is a wasteful number, since it uses less digits than its factorization.

2103140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315780 (or 6315777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2103140421 is about 45860.0089511548. The cubic root of 2103140421 is about 1281.2171895433.

Adding to 2103140421 its reverse (1240413012), we get a palindrome (3343553433).

The spelling of 2103140421 in words is "two billion, one hundred three million, one hundred forty thousand, four hundred twenty-one".