1032120999 has 48 divisors (see below), whose sum is σ = 1849516032. Its totient is φ = 540074304.

The previous prime is 1032120979. The next prime is 1032121007. The reversal of 1032120999 is 9990212301.

It is a happy number.

It is not a de Polignac number, because 1032120999 - 2⁸ = 1032120743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032120979) 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 47 ways as a sum of consecutive naturals, for example, 99052 + ... + 108974.

It is an arithmetic number, because the mean of its divisors is an integer number (38531584).

Almost surely, 2^1032120999 is an apocalyptic number.

1032120999 is a deficient number, since it is larger than the sum of its proper divisors (817395033).

1032120999 is a wasteful number, since it uses less digits than its factorization.

1032120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076 (or 10073 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1032120999 is about 32126.6400203943. The cubic root of 1032120999 is about 1010.5943627719.

The spelling of 1032120999 in words is "one billion, thirty-two million, one hundred twenty thousand, nine hundred ninety-nine".