42102330020020 has 12 divisors (see below), whose sum is σ = 88414893042084. Its totient is φ = 16840932008000.

The previous prime is 42102330020011. The next prime is 42102330020053. The reversal of 42102330020020 is 2002003320124.

It can be written as a sum of positive squares in 2 ways, for example, as 27121993262884 + 14980336757136 = 5207878^2 + 3870444^2 .

It is a super-2 number, since 2×42102330020020² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42102330020020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052558250481 + ... + 1052558250520.

It is an arithmetic number, because the mean of its divisors is an integer number (7367907753507).

Almost surely, 2^{42102330020020} is an apocalyptic number.

It is an amenable number.

42102330020020 is an abundant number, since it is smaller than the sum of its proper divisors (46312563022064).

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

42102330020020 is a wasteful number, since it uses less digits than its factorization.

42102330020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105116501010 (or 2105116501008 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 42102330020020 its reverse (2002003320124), we get a palindrome (44104333340144).

The spelling of 42102330020020 in words is "forty-two trillion, one hundred two billion, three hundred thirty million, twenty thousand, twenty".