1240421102102 has 128 divisors (see below), whose sum is σ = 2389484482560. Its totient is φ = 469916328960.

The previous prime is 1240421102051. The next prime is 1240421102113. The reversal of 1240421102102 is 2012011240421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101977073 + ... + 101989235.

It is an arithmetic number, because the mean of its divisors is an integer number (18667847520).

Almost surely, 2^{1240421102102} is an apocalyptic number.

1240421102102 is a deficient number, since it is larger than the sum of its proper divisors (1149063380458).

1240421102102 is a wasteful number, since it uses less digits than its factorization.

1240421102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1240421102102 its reverse (2012011240421), we get a palindrome (3252432342523).

The spelling of 1240421102102 in words is "one trillion, two hundred forty billion, four hundred twenty-one million, one hundred two thousand, one hundred two".