1230023021011 has 4 divisors (see below), whose sum is σ = 1230349377400. Its totient is φ = 1229696664624.

The previous prime is 1230023020949. The next prime is 1230023021033. The reversal of 1230023021011 is 1101203200321.

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

It is a cyclic number.

It is not a de Polignac number, because 1230023021011 - 2¹⁷ = 1230022889939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230023024011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163172541 + ... + 163180078.

It is an arithmetic number, because the mean of its divisors is an integer number (307587344350).

Almost surely, 2^{1230023021011} is an apocalyptic number.

1230023021011 is a deficient number, since it is larger than the sum of its proper divisors (326356389).

1230023021011 is an equidigital number, since it uses as much as digits as its factorization.

1230023021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326356388.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1230023021011 its reverse (1101203200321), we get a palindrome (2331226221332).

The spelling of 1230023021011 in words is "one trillion, two hundred thirty billion, twenty-three million, twenty-one thousand, eleven".