42012402100 has 36 divisors (see below), whose sum is σ = 91297117548. Its totient is φ = 16780960000.

The previous prime is 42012402023. The next prime is 42012402143. The reversal of 42012402100 is 120421024.

It can be written as a sum of positive squares in 6 ways, for example, as 3466147876 + 38546254224 = 58874^2 + 196332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229561 + ... + 369760.

It is an arithmetic number, because the mean of its divisors is an integer number (2536031043).

Almost surely, 2^42012402100 is an apocalyptic number.

It is an amenable number.

42012402100 is an abundant number, since it is smaller than the sum of its proper divisors (49284715448).

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

42012402100 is a wasteful number, since it uses less digits than its factorization.

42012402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600036 (or 600029 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 42012402100 its reverse (120421024), we get a palindrome (42132823124).

The spelling of 42012402100 in words is "forty-two billion, twelve million, four hundred two thousand, one hundred".