1211112020087 has 2 divisors, whose sum is σ = 1211112020088. Its totient is φ = 1211112020086.

The previous prime is 1211112020023. The next prime is 1211112020117. The reversal of 1211112020087 is 7800202111121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211112020087 - 2⁶ = 1211112020023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1811112020087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605556010043 + 605556010044.

It is an arithmetic number, because the mean of its divisors is an integer number (605556010044).

Almost surely, 2^{1211112020087} is an apocalyptic number.

1211112020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211112020087 is an equidigital number, since it uses as much as digits as its factorization.

1211112020087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 1211112020087 in words is "one trillion, two hundred eleven billion, one hundred twelve million, twenty thousand, eighty-seven".