42120111140102 has 16 divisors (see below), whose sum is σ = 63678046248960. Its totient is φ = 20894097796488.

The previous prime is 42120111140047. The next prime is 42120111140281. The reversal of 42120111140102 is 20104111102124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49816643 + ... + 50655089.

It is an arithmetic number, because the mean of its divisors is an integer number (3979877890560).

Almost surely, 2^{42120111140102} is an apocalyptic number.

42120111140102 is a deficient number, since it is larger than the sum of its proper divisors (21557935108858).

42120111140102 is a wasteful number, since it uses less digits than its factorization.

42120111140102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036355.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 42120111140102 its reverse (20104111102124), we get a palindrome (62224222242226).

The spelling of 42120111140102 in words is "forty-two trillion, one hundred twenty billion, one hundred eleven million, one hundred forty thousand, one hundred two".