10242021343240 has 64 divisors (see below), whose sum is σ = 24403142205360. Its totient is φ = 3855340584960.

The previous prime is 10242021343237. The next prime is 10242021343259. The reversal of 10242021343240 is 4234312024201.

It can be written as a sum of positive squares in 8 ways, for example, as 8272169795044 + 1969851548196 = 2876138^2 + 1403514^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10242021343199 and 10242021343208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4563154 + ... + 6427006.

Almost surely, 2^{10242021343240} is an apocalyptic number.

10242021343240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10242021343240 is an abundant number, since it is smaller than the sum of its proper divisors (14161120862120).

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

10242021343240 is a wasteful number, since it uses less digits than its factorization.

10242021343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871962 (or 1871958 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 10242021343240 its reverse (4234312024201), we get a palindrome (14476333367441).

The spelling of 10242021343240 in words is "ten trillion, two hundred forty-two billion, twenty-one million, three hundred forty-three thousand, two hundred forty".