2126043523 has 4 divisors (see below), whose sum is σ = 2126143480. Its totient is φ = 2125943568.

The previous prime is 2126043487. The next prime is 2126043527. The reversal of 2126043523 is 3253406212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2126043523 is a prime.

It is a super-2 number, since 2×2126043523² = 9040122123380503058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2126043491 and 2126043500.

It is not an unprimeable number, because it can be changed into a prime (2126043527) 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, 3933 + ... + 65326.

It is an arithmetic number, because the mean of its divisors is an integer number (531535870).

Almost surely, 2^2126043523 is an apocalyptic number.

2126043523 is a deficient number, since it is larger than the sum of its proper divisors (99957).

2126043523 is an equidigital number, since it uses as much as digits as its factorization.

2126043523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99956.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2126043523 is about 46109.0394933575. The cubic root of 2126043523 is about 1285.8512072811.

Adding to 2126043523 its reverse (3253406212), we get a palindrome (5379449735).

The spelling of 2126043523 in words is "two billion, one hundred twenty-six million, forty-three thousand, five hundred twenty-three".