1205142246124 has 24 divisors (see below), whose sum is σ = 2116533586608. Its totient is φ = 600419019840.

The previous prime is 1205142246089. The next prime is 1205142246127. The reversal of 1205142246124 is 4216422415021.

It is a self number, because there is not a number n which added to its sum of digits gives 1205142246124.

It is not an unprimeable number, because it can be changed into a prime (1205142246127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7594554 + ... + 7751614.

It is an arithmetic number, because the mean of its divisors is an integer number (88188899442).

Almost surely, 2^{1205142246124} is an apocalyptic number.

It is an amenable number.

1205142246124 is a deficient number, since it is larger than the sum of its proper divisors (911391340484).

1205142246124 is a wasteful number, since it uses less digits than its factorization.

1205142246124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163905 (or 163903 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 1205142246124 in words is "one trillion, two hundred five billion, one hundred forty-two million, two hundred forty-six thousand, one hundred twenty-four".