10206243215240 has 64 divisors (see below), whose sum is σ = 23290395730560. Its totient is φ = 4024494154240.

The previous prime is 10206243215221. The next prime is 10206243215411. The reversal of 10206243215240 is 4251234260201.

It is a junction number, because it is equal to n+sod(n) for n = 10206243215197 and 10206243215206.

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, 22916924 + ... + 23358036.

It is an arithmetic number, because the mean of its divisors is an integer number (363912433290).

Almost surely, 2^{10206243215240} is an apocalyptic number.

10206243215240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10206243215240 is an abundant number, since it is smaller than the sum of its proper divisors (13084152515320).

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

10206243215240 is a wasteful number, since it uses less digits than its factorization.

10206243215240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449342 (or 449338 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 10206243215240 its reverse (4251234260201), we get a palindrome (14457477475441).

The spelling of 10206243215240 in words is "ten trillion, two hundred six billion, two hundred forty-three million, two hundred fifteen thousand, two hundred forty".