40401131087 has 2 divisors, whose sum is σ = 40401131088. Its totient is φ = 40401131086.

The previous prime is 40401131063. The next prime is 40401131101. The reversal of 40401131087 is 78013110404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40401131087 - 2⁸ = 40401130831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401131587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200565543 + 20200565544.

It is an arithmetic number, because the mean of its divisors is an integer number (20200565544).

Almost surely, 2^40401131087 is an apocalyptic number.

40401131087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401131087 is an equidigital number, since it uses as much as digits as its factorization.

40401131087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 40401131087 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, eighty-seven".