1023120998 has 4 divisors (see below), whose sum is σ = 1534681500. Its totient is φ = 511560498.

The previous prime is 1023120977. The next prime is 1023121019. The reversal of 1023120998 is 8990213201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1023120977) and next prime (1023121019).

It is a congruent number.

It is an unprimeable number.

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, 255780248 + ... + 255780251.

It is an arithmetic number, because the mean of its divisors is an integer number (383670375).

Almost surely, 2^1023120998 is an apocalyptic number.

1023120998 is a deficient number, since it is larger than the sum of its proper divisors (511560502).

1023120998 is an equidigital number, since it uses as much as digits as its factorization.

1023120998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511560501.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1023120998 is about 31986.2626450794. The cubic root of 1023120998 is about 1007.6483528953.

The spelling of 1023120998 in words is "one billion, twenty-three million, one hundred twenty thousand, nine hundred ninety-eight".