2103421544 has 32 divisors (see below), whose sum is σ = 4537200000. Its totient is φ = 895492800.

The previous prime is 2103421519. The next prime is 2103421549. The reversal of 2103421544 is 4451243012.

It is a super-4 number, since 4×2103421544⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2103421549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 115919 + ... + 132830.

It is an arithmetic number, because the mean of its divisors is an integer number (141787500).

Almost surely, 2^2103421544 is an apocalyptic number.

It is an amenable number.

2103421544 is an abundant number, since it is smaller than the sum of its proper divisors (2433778456).

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

2103421544 is a wasteful number, since it uses less digits than its factorization.

2103421544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248913 (or 248909 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2103421544 is about 45863.0738612230. The cubic root of 2103421544 is about 1281.2742729996.

Adding to 2103421544 its reverse (4451243012), we get a palindrome (6554664556).

The spelling of 2103421544 in words is "two billion, one hundred three million, four hundred twenty-one thousand, five hundred forty-four".