1023099987 has 32 divisors (see below), whose sum is σ = 1724326912. Its totient is φ = 525066624.

The previous prime is 1023099941. The next prime is 1023100021. The reversal of 1023099987 is 7899903201.

It is not a de Polignac number, because 1023099987 - 2⁶ = 1023099923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023099907) 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 in 31 ways as a sum of consecutive naturals, for example, 40543 + ... + 60744.

It is an arithmetic number, because the mean of its divisors is an integer number (53885216).

Almost surely, 2^1023099987 is an apocalyptic number.

1023099987 is a deficient number, since it is larger than the sum of its proper divisors (701226925).

1023099987 is a wasteful number, since it uses less digits than its factorization.

1023099987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101347.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 1023099987 is about 31985.9342055223. The cubic root of 1023099987 is about 1007.6414550978.

The spelling of 1023099987 in words is "one billion, twenty-three million, ninety-nine thousand, nine hundred eighty-seven".