31421111044087 has 2 divisors, whose sum is σ = 31421111044088. Its totient is φ = 31421111044086.

The previous prime is 31421111044073. The next prime is 31421111044117. The reversal of 31421111044087 is 78044011112413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31421111044087 - 2¹¹ = 31421111042039 is a prime.

It is a super-3 number, since 3×31421111044087³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31421111044787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710555522043 + 15710555522044.

It is an arithmetic number, because the mean of its divisors is an integer number (15710555522044).

Almost surely, 2^{31421111044087} is an apocalyptic number.

31421111044087 is a deficient number, since it is larger than the sum of its proper divisors (1).

31421111044087 is an equidigital number, since it uses as much as digits as its factorization.

31421111044087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 31421111044087 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred eleven million, forty-four thousand, eighty-seven".