10243212340 has 12 divisors (see below), whose sum is σ = 21510745956. Its totient is φ = 4097284928.

The previous prime is 10243212337. The next prime is 10243212359. The reversal of 10243212340 is 4321234201.

It can be written as a sum of positive squares in 2 ways, for example, as 3294989604 + 6948222736 = 57402^2 + 83356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256080289 + ... + 256080328.

It is an arithmetic number, because the mean of its divisors is an integer number (1792562163).

Almost surely, 2^10243212340 is an apocalyptic number.

10243212340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10243212340 is an abundant number, since it is smaller than the sum of its proper divisors (11267533616).

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

10243212340 is a wasteful number, since it uses less digits than its factorization.

10243212340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512160626 (or 512160624 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 10243212340 its reverse (4321234201), we get a palindrome (14564446541).

The spelling of 10243212340 in words is "ten billion, two hundred forty-three million, two hundred twelve thousand, three hundred forty".