2103213456 has 30 divisors (see below), whose sum is σ = 5886076950. Its totient is φ = 701071104.

The previous prime is 2103213407. The next prime is 2103213457. The reversal of 2103213456 is 6543123012.

It can be written as a sum of positive squares in only one way, i.e., 2079360000 + 23853456 = 45600^2 + 4884^2 .

It is not an unprimeable number, because it can be changed into a prime (2103213457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7302681 + ... + 7302968.

It is an arithmetic number, because the mean of its divisors is an integer number (196202565).

Almost surely, 2^2103213456 is an apocalyptic number.

It is an amenable number.

2103213456 is an abundant number, since it is smaller than the sum of its proper divisors (3782863494).

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

2103213456 is a wasteful number, since it uses less digits than its factorization.

2103213456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14605663 (or 14605654 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2103213456 is about 45860.8052262496. The cubic root of 2103213456 is about 1281.2320201609.

Adding to 2103213456 its reverse (6543123012), we get a palindrome (8646336468).

The spelling of 2103213456 in words is "two billion, one hundred three million, two hundred thirteen thousand, four hundred fifty-six".