100412128987 has 2 divisors, whose sum is σ = 100412128988. Its totient is φ = 100412128986.

The previous prime is 100412128981. The next prime is 100412129011. The reversal of 100412128987 is 789821214001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100412128987 - 2¹⁵ = 100412096219 is a prime.

It is not a weakly prime, because it can be changed into another prime (100412128981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50206064493 + 50206064494.

It is an arithmetic number, because the mean of its divisors is an integer number (50206064494).

Almost surely, 2^100412128987 is an apocalyptic number.

100412128987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100412128987 is an equidigital number, since it uses as much as digits as its factorization.

100412128987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 100412128987 in words is "one hundred billion, four hundred twelve million, one hundred twenty-eight thousand, nine hundred eighty-seven".