2521433123 has 4 divisors (see below), whose sum is σ = 2750654328. Its totient is φ = 2292211920.

The previous prime is 2521433119. The next prime is 2521433203. The reversal of 2521433123 is 3213341252.

It is a happy number.

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 2521433123 - 2² = 2521433119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521433092 and 2521433101.

It is not an unprimeable number, because it can be changed into a prime (2521433023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114610586 + ... + 114610607.

It is an arithmetic number, because the mean of its divisors is an integer number (687663582).

Almost surely, 2^2521433123 is an apocalyptic number.

2521433123 is a deficient number, since it is larger than the sum of its proper divisors (229221205).

2521433123 is a wasteful number, since it uses less digits than its factorization.

2521433123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229221204.

The product of its digits is 4320, while the sum is 26.

The square root of 2521433123 is about 50213.8738099342. The cubic root of 2521433123 is about 1361.0763399369.

Adding to 2521433123 its reverse (3213341252), we get a palindrome (5734774375).

The spelling of 2521433123 in words is "two billion, five hundred twenty-one million, four hundred thirty-three thousand, one hundred twenty-three".