1230101987 has 2 divisors, whose sum is σ = 1230101988. Its totient is φ = 1230101986.

The previous prime is 1230101953. The next prime is 1230101993. The reversal of 1230101987 is 7891010321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230101987 - 2²⁴ = 1213324771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230104987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615050993 + 615050994.

It is an arithmetic number, because the mean of its divisors is an integer number (615050994).

Almost surely, 2^1230101987 is an apocalyptic number.

1230101987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230101987 is an equidigital number, since it uses as much as digits as its factorization.

1230101987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1230101987 is about 35072.8097961940. The cubic root of 1230101987 is about 1071.4708821734.

The spelling of 1230101987 in words is "one billion, two hundred thirty million, one hundred one thousand, nine hundred eighty-seven".