2124208923 has 4 divisors (see below), whose sum is σ = 2832278568. Its totient is φ = 1416139280.

The previous prime is 2124208921. The next prime is 2124208927. The reversal of 2124208923 is 3298024212.

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 2124208923 - 2¹ = 2124208921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2124208921) 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, 354034818 + ... + 354034823.

It is an arithmetic number, because the mean of its divisors is an integer number (708069642).

Almost surely, 2^2124208923 is an apocalyptic number.

2124208923 is a deficient number, since it is larger than the sum of its proper divisors (708069645).

2124208923 is an equidigital number, since it uses as much as digits as its factorization.

2124208923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708069644.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2124208923 is about 46089.1410529639. The cubic root of 2124208923 is about 1285.4812397064.

The spelling of 2124208923 in words is "two billion, one hundred twenty-four million, two hundred eight thousand, nine hundred twenty-three".