1210101101987 has 2 divisors, whose sum is σ = 1210101101988. Its totient is φ = 1210101101986.

The previous prime is 1210101101981. The next prime is 1210101102029. The reversal of 1210101101987 is 7891011010121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210101101987 - 2²² = 1210096907683 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210101101981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605050550993 + 605050550994.

It is an arithmetic number, because the mean of its divisors is an integer number (605050550994).

Almost surely, 2^{1210101101987} is an apocalyptic number.

1210101101987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210101101987 is an equidigital number, since it uses as much as digits as its factorization.

1210101101987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 32.

The spelling of 1210101101987 in words is "one trillion, two hundred ten billion, one hundred one million, one hundred one thousand, nine hundred eighty-seven".