40231112019869 has 2 divisors, whose sum is σ = 40231112019870. Its totient is φ = 40231112019868.

The previous prime is 40231112019823. The next prime is 40231112020039. The reversal of 40231112019869 is 96891021113204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38816824999225 + 1414287020644 = 6230315^2 + 1189238^2 .

It is a cyclic number.

It is not a de Polignac number, because 40231112019869 - 2⁴⁴ = 22638925975453 is a prime.

It is a super-2 number, since 2×40231112019869² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40231112016869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20115556009934 + 20115556009935.

It is an arithmetic number, because the mean of its divisors is an integer number (20115556009935).

Almost surely, 2^{40231112019869} is an apocalyptic number.

It is an amenable number.

40231112019869 is a deficient number, since it is larger than the sum of its proper divisors (1).

40231112019869 is an equidigital number, since it uses as much as digits as its factorization.

40231112019869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 40231112019869 in words is "forty trillion, two hundred thirty-one billion, one hundred twelve million, nineteen thousand, eight hundred sixty-nine".