1243012103252 has 24 divisors (see below), whose sum is σ = 2245872491520. Its totient is φ = 601572968640.

The previous prime is 1243012103219. The next prime is 1243012103287. The reversal of 1243012103252 is 2523012103421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29819102 + ... + 29860757.

It is an arithmetic number, because the mean of its divisors is an integer number (93578020480).

Almost surely, 2^{1243012103252} is an apocalyptic number.

It is an amenable number.

1243012103252 is a deficient number, since it is larger than the sum of its proper divisors (1002860388268).

1243012103252 is a wasteful number, since it uses less digits than its factorization.

1243012103252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59680031 (or 59680029 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1243012103252 its reverse (2523012103421), we get a palindrome (3766024206673).

The spelling of 1243012103252 in words is "one trillion, two hundred forty-three billion, twelve million, one hundred three thousand, two hundred fifty-two".