1001211210023 has 4 divisors (see below), whose sum is σ = 1001411979240. Its totient is φ = 1001010440808.

The previous prime is 1001211209983. The next prime is 1001211210053. The reversal of 1001211210023 is 3200121121001.

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 1001211210023 - 2¹⁰ = 1001211208999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001211210053) 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, 100377128 + ... + 100387101.

It is an arithmetic number, because the mean of its divisors is an integer number (250352994810).

Almost surely, 2^{1001211210023} is an apocalyptic number.

1001211210023 is a deficient number, since it is larger than the sum of its proper divisors (200769217).

1001211210023 is an equidigital number, since it uses as much as digits as its factorization.

1001211210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200769216.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1001211210023 its reverse (3200121121001), we get a palindrome (4201332331024).

The spelling of 1001211210023 in words is "one trillion, one billion, two hundred eleven million, two hundred ten thousand, twenty-three".