40421148117631 has 2 divisors, whose sum is σ = 40421148117632. Its totient is φ = 40421148117630.

The previous prime is 40421148117629. The next prime is 40421148117653. The reversal of 40421148117631 is 13671184112404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40421148117631 - 2¹ = 40421148117629 is a prime.

It is a super-2 number, since 2×40421148117631² (a number of 28 digits) contains 22 as substring.

Together with 40421148117629, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40421148117131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210574058815 + 20210574058816.

It is an arithmetic number, because the mean of its divisors is an integer number (20210574058816).

Almost surely, 2^{40421148117631} is an apocalyptic number.

40421148117631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421148117631 is an equidigital number, since it uses as much as digits as its factorization.

40421148117631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 40421148117631 in words is "forty trillion, four hundred twenty-one billion, one hundred forty-eight million, one hundred seventeen thousand, six hundred thirty-one".