4113231131021 has 4 divisors (see below), whose sum is σ = 4355185903452. Its totient is φ = 3871276358592.

The previous prime is 4113231130993. The next prime is 4113231131041. The reversal of 4113231131021 is 1201311323114.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3644239002121 + 468992128900 = 1908989^2 + 684830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4113231131021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4113231131041) 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, 120977386190 + ... + 120977386223.

It is an arithmetic number, because the mean of its divisors is an integer number (1088796475863).

Almost surely, 2^{4113231131021} is an apocalyptic number.

It is an amenable number.

4113231131021 is a deficient number, since it is larger than the sum of its proper divisors (241954772431).

4113231131021 is a wasteful number, since it uses less digits than its factorization.

4113231131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241954772430.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 4113231131021 its reverse (1201311323114), we get a palindrome (5314542454135).

The spelling of 4113231131021 in words is "four trillion, one hundred thirteen billion, two hundred thirty-one million, one hundred thirty-one thousand, twenty-one".