1238101785012 has 12 divisors (see below), whose sum is σ = 2888904165056. Its totient is φ = 412700595000.

The previous prime is 1238101784987. The next prime is 1238101785013. The reversal of 1238101785012 is 2105871018321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238101785013) 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 3 ways as a sum of consecutive naturals, for example, 51587574364 + ... + 51587574387.

Almost surely, 2^{1238101785012} is an apocalyptic number.

1238101785012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1238101785012 is an abundant number, since it is smaller than the sum of its proper divisors (1650802380044).

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

1238101785012 is a wasteful number, since it uses less digits than its factorization.

1238101785012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103175148758 (or 103175148756 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 1238101785012 in words is "one trillion, two hundred thirty-eight billion, one hundred one million, seven hundred eighty-five thousand, twelve".