42001202011 has 4 divisors (see below), whose sum is σ = 42018188392. Its totient is φ = 41984215632.

The previous prime is 42001201993. The next prime is 42001202017. The reversal of 42001202011 is 11020210024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42001202011 - 2⁷ = 42001201883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42001201982 and 42001202000.

It is not an unprimeable number, because it can be changed into a prime (42001202017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8489481 + ... + 8494426.

It is an arithmetic number, because the mean of its divisors is an integer number (10504547098).

Almost surely, 2^42001202011 is an apocalyptic number.

42001202011 is a deficient number, since it is larger than the sum of its proper divisors (16986381).

42001202011 is a wasteful number, since it uses less digits than its factorization.

42001202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16986380.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 42001202011 its reverse (11020210024), we get a palindrome (53021412035).

The spelling of 42001202011 in words is "forty-two billion, one million, two hundred two thousand, eleven".