2123354501 has 4 divisors (see below), whose sum is σ = 2124544512. Its totient is φ = 2122164492.

The previous prime is 2123354489. The next prime is 2123354521. The reversal of 2123354501 is 1054533212.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2123354501 - 2⁶ = 2123354437 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 (2123354521) 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, 592325 + ... + 595898.

It is an arithmetic number, because the mean of its divisors is an integer number (531136128).

Almost surely, 2^2123354501 is an apocalyptic number.

It is an amenable number.

2123354501 is a deficient number, since it is larger than the sum of its proper divisors (1190011).

2123354501 is a wasteful number, since it uses less digits than its factorization.

2123354501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190010.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2123354501 is about 46079.8708874059. The cubic root of 2123354501 is about 1285.3088632615.

Adding to 2123354501 its reverse (1054533212), we get a palindrome (3177887713).

The spelling of 2123354501 in words is "two billion, one hundred twenty-three million, three hundred fifty-four thousand, five hundred one".