1020242155012 has 6 divisors (see below), whose sum is σ = 1785423771278. Its totient is φ = 510121077504.

The previous prime is 1020242155003. The next prime is 1020242155019. The reversal of 1020242155012 is 2105512420201.

1020242155012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 939612280896 + 80629874116 = 969336^2 + 283954^2 .

It is not an unprimeable number, because it can be changed into a prime (1020242155019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127530269373 + ... + 127530269380.

Almost surely, 2^{1020242155012} is an apocalyptic number.

It is an amenable number.

1020242155012 is a deficient number, since it is larger than the sum of its proper divisors (765181616266).

1020242155012 is a wasteful number, since it uses less digits than its factorization.

1020242155012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255060538757 (or 255060538755 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 1020242155012 its reverse (2105512420201), we get a palindrome (3125754575213).

The spelling of 1020242155012 in words is "one trillion, twenty billion, two hundred forty-two million, one hundred fifty-five thousand, twelve".