1001252111423 has 4 divisors (see below), whose sum is σ = 1001254349040. Its totient is φ = 1001249873808.

The previous prime is 1001252111399. The next prime is 1001252111437. The reversal of 1001252111423 is 3241112521001.

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 1001252111423 - 2¹⁰ = 1001252110399 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 (1001252111443) 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, 191315 + ... + 1427972.

It is an arithmetic number, because the mean of its divisors is an integer number (250313587260).

Almost surely, 2^{1001252111423} is an apocalyptic number.

1001252111423 is a deficient number, since it is larger than the sum of its proper divisors (2237617).

1001252111423 is an equidigital number, since it uses as much as digits as its factorization.

1001252111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237616.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1001252111423 its reverse (3241112521001), we get a palindrome (4242364632424).

The spelling of 1001252111423 in words is "one trillion, one billion, two hundred fifty-two million, one hundred eleven thousand, four hundred twenty-three".