42235131001 has 6 divisors (see below), whose sum is σ = 49130662650. Its totient is φ = 36201540816.

The previous prime is 42235130953. The next prime is 42235131013. The reversal of 42235131001 is 10013153224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39132752400 + 3102378601 = 197820^2 + 55699^2 .

It is not a de Polignac number, because 42235131001 - 2²⁷ = 42100913273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42235131091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430970676 + ... + 430970773.

It is an arithmetic number, because the mean of its divisors is an integer number (8188443775).

Almost surely, 2^42235131001 is an apocalyptic number.

It is an amenable number.

42235131001 is a deficient number, since it is larger than the sum of its proper divisors (6895531649).

42235131001 is an equidigital number, since it uses as much as digits as its factorization.

42235131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861941463 (or 861941456 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 42235131001 its reverse (10013153224), we get a palindrome (52248284225).

The spelling of 42235131001 in words is "forty-two billion, two hundred thirty-five million, one hundred thirty-one thousand, one".