1211442001023 has 8 divisors (see below), whose sum is σ = 1700269475200. Its totient is φ = 765121263768.

The previous prime is 1211442001001. The next prime is 1211442001031. The reversal of 1211442001023 is 3201002441121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1211442001023 - 2⁶ = 1211442000959 is a prime.

It is a super-3 number, since 3×1211442001023³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211442001093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10626684163 + ... + 10626684276.

It is an arithmetic number, because the mean of its divisors is an integer number (212533684400).

Almost surely, 2^{1211442001023} is an apocalyptic number.

1211442001023 is a deficient number, since it is larger than the sum of its proper divisors (488827474177).

1211442001023 is a wasteful number, since it uses less digits than its factorization.

1211442001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21253368461.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1211442001023 its reverse (3201002441121), we get a palindrome (4412444442144).

The spelling of 1211442001023 in words is "one trillion, two hundred eleven billion, four hundred forty-two million, one thousand, twenty-three".