1240512143210 has 16 divisors (see below), whose sum is σ = 2237469568992. Its totient is φ = 495194254800.

The previous prime is 1240512143209. The next prime is 1240512143249. The reversal of 1240512143210 is 123412150421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240512143210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126320156 + ... + 126329975.

It is an arithmetic number, because the mean of its divisors is an integer number (139841848062).

Almost surely, 2^{1240512143210} is an apocalyptic number.

1240512143210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240512143210 is a deficient number, since it is larger than the sum of its proper divisors (996957425782).

1240512143210 is a wasteful number, since it uses less digits than its factorization.

1240512143210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252650629.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1240512143210 its reverse (123412150421), we get a palindrome (1363924293631).

The spelling of 1240512143210 in words is "one trillion, two hundred forty billion, five hundred twelve million, one hundred forty-three thousand, two hundred ten".