10523143121 has 4 divisors (see below), whose sum is σ = 10524722544. Its totient is φ = 10521563700.

The previous prime is 10523143117. The next prime is 10523143133. The reversal of 10523143121 is 12134132501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12134132501 = 34589 ⋅350809.

It is a cyclic number.

It is not a de Polignac number, because 10523143121 - 2² = 10523143117 is a prime.

It is a super-2 number, since 2×10523143121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10523143151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779675 + ... + 793056.

It is an arithmetic number, because the mean of its divisors is an integer number (2631180636).

Almost surely, 2^10523143121 is an apocalyptic number.

It is an amenable number.

10523143121 is a deficient number, since it is larger than the sum of its proper divisors (1579423).

10523143121 is an equidigital number, since it uses as much as digits as its factorization.

10523143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579422.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 10523143121 its reverse (12134132501), we get a palindrome (22657275622).

The spelling of 10523143121 in words is "ten billion, five hundred twenty-three million, one hundred forty-three thousand, one hundred twenty-one".