1242101340102 has 32 divisors (see below), whose sum is σ = 2840614527744. Its totient is φ = 354695378400.

The previous prime is 1242101340101. The next prime is 1242101340131. The reversal of 1242101340102 is 2010431012421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242101340101) 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 15 ways as a sum of consecutive naturals, for example, 7867524 + ... + 8023847.

It is an arithmetic number, because the mean of its divisors is an integer number (88769203992).

Almost surely, 2^{1242101340102} is an apocalyptic number.

1242101340102 is an abundant number, since it is smaller than the sum of its proper divisors (1598513187642).

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

1242101340102 is a wasteful number, since it uses less digits than its factorization.

1242101340102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893244.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1242101340102 its reverse (2010431012421), we get a palindrome (3252532352523).

The spelling of 1242101340102 in words is "one trillion, two hundred forty-two billion, one hundred one million, three hundred forty thousand, one hundred two".