41131311021 has 6 divisors (see below), whose sum is σ = 59411893710. Its totient is φ = 27420874008.

The previous prime is 41131310999. The next prime is 41131311029. The reversal of 41131311021 is 12011313114.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24652454121 + 16478856900 = 157011^2 + 128370^2 .

It is not a de Polignac number, because 41131311021 - 2⁷ = 41131310893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41131310985 and 41131311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41131311029) 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, 2285072826 + ... + 2285072843.

It is an arithmetic number, because the mean of its divisors is an integer number (9901982285).

Almost surely, 2^41131311021 is an apocalyptic number.

It is an amenable number.

41131311021 is a deficient number, since it is larger than the sum of its proper divisors (18280582689).

41131311021 is a wasteful number, since it uses less digits than its factorization.

41131311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570145675 (or 4570145672 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 41131311021 its reverse (12011313114), we get a palindrome (53142624135).

The spelling of 41131311021 in words is "forty-one billion, one hundred thirty-one million, three hundred eleven thousand, twenty-one".