1242143702000 has 80 divisors (see below), whose sum is σ = 3041522889600. Its totient is φ = 490568083200.

The previous prime is 1242143701951. The next prime is 1242143702003. The reversal of 1242143702000 is 2073412421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242143702003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3772835 + ... + 4088834.

It is an arithmetic number, because the mean of its divisors is an integer number (38019036120).

Almost surely, 2^{1242143702000} is an apocalyptic number.

1242143702000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242143702000 is an abundant number, since it is smaller than the sum of its proper divisors (1799379187600).

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

1242143702000 is an equidigital number, since it uses as much as digits as its factorization.

1242143702000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861771 (or 7861755 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 1242143702000 in words is "one trillion, two hundred forty-two billion, one hundred forty-three million, seven hundred two thousand".