40141111993 has 2 divisors, whose sum is σ = 40141111994. Its totient is φ = 40141111992.

The previous prime is 40141111991. The next prime is 40141112087. The reversal of 40141111993 is 39911114104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25506645264 + 14634466729 = 159708^2 + 120973^2 .

It is a cyclic number.

It is not a de Polignac number, because 40141111993 - 2¹ = 40141111991 is a prime.

It is a super-2 number, since 2×40141111993² (a number of 22 digits) contains 22 as substring.

Together with 40141111991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40141111991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20070555996 + 20070555997.

It is an arithmetic number, because the mean of its divisors is an integer number (20070555997).

Almost surely, 2^40141111993 is an apocalyptic number.

It is an amenable number.

40141111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40141111993 is an equidigital number, since it uses as much as digits as its factorization.

40141111993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

It can be divided in two parts, 4014111 and 1993, that added together give a palindrome (4016104).

The spelling of 40141111993 in words is "forty billion, one hundred forty-one million, one hundred eleven thousand, nine hundred ninety-three".