1001212031023 has 4 divisors (see below), whose sum is σ = 1001981603448. Its totient is φ = 1000442458600.

The previous prime is 1001212030979. The next prime is 1001212031101. The reversal of 1001212031023 is 3201302121001.

1001212031023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1001212031023 - 2²⁵ = 1001178476591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001212030988 and 1001212031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001212035023) 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, 384784261 + ... + 384786862.

It is an arithmetic number, because the mean of its divisors is an integer number (250495400862).

Almost surely, 2^{1001212031023} is an apocalyptic number.

1001212031023 is a deficient number, since it is larger than the sum of its proper divisors (769572425).

1001212031023 is an equidigital number, since it uses as much as digits as its factorization.

1001212031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769572424.

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

Adding to 1001212031023 its reverse (3201302121001), we get a palindrome (4202514152024).

The spelling of 1001212031023 in words is "one trillion, one billion, two hundred twelve million, thirty-one thousand, twenty-three".