4011821137631 has 2 divisors, whose sum is σ = 4011821137632. Its totient is φ = 4011821137630.

The previous prime is 4011821137589. The next prime is 4011821137633. The reversal of 4011821137631 is 1367311281104.

It is a happy number.

4011821137631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4011821137631 - 2¹⁴ = 4011821121247 is a prime.

It is a super-2 number, since 2×4011821137631² (a number of 26 digits) contains 22 as substring.

Together with 4011821137633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4011821137633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005910568815 + 2005910568816.

It is an arithmetic number, because the mean of its divisors is an integer number (2005910568816).

Almost surely, 2^{4011821137631} is an apocalyptic number.

4011821137631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011821137631 is an equidigital number, since it uses as much as digits as its factorization.

4011821137631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 4011821137631 in words is "four trillion, eleven billion, eight hundred twenty-one million, one hundred thirty-seven thousand, six hundred thirty-one".