1020232211009 has 4 divisors (see below), whose sum is σ = 1112980593840. Its totient is φ = 927483828180.

The previous prime is 1020232210999. The next prime is 1020232211069. The reversal of 1020232211009 is 9001122320201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020232211009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020232211069) 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 3 ways as a sum of consecutive naturals, for example, 46374191399 + ... + 46374191420.

It is an arithmetic number, because the mean of its divisors is an integer number (278245148460).

Almost surely, 2^{1020232211009} is an apocalyptic number.

It is an amenable number.

1020232211009 is a deficient number, since it is larger than the sum of its proper divisors (92748382831).

1020232211009 is an equidigital number, since it uses as much as digits as its factorization.

1020232211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92748382830.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 1020232211009 in words is "one trillion, twenty billion, two hundred thirty-two million, two hundred eleven thousand, nine".