1023119987 has 2 divisors, whose sum is σ = 1023119988. Its totient is φ = 1023119986.

The previous prime is 1023119957. The next prime is 1023120019. The reversal of 1023119987 is 7899113201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023119987 - 2⁸ = 1023119731 is a prime.

It is a super-3 number, since 3×1023119987³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1023119917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511559993 + 511559994.

It is an arithmetic number, because the mean of its divisors is an integer number (511559994).

Almost surely, 2^1023119987 is an apocalyptic number.

1023119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023119987 is an equidigital number, since it uses as much as digits as its factorization.

1023119987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 1023119987 is about 31986.2468414161. The cubic root of 1023119987 is about 1007.6480209917.

The spelling of 1023119987 in words is "one billion, twenty-three million, one hundred nineteen thousand, nine hundred eighty-seven".