2120126423 has 8 divisors (see below), whose sum is σ = 2256474528. Its totient is φ = 1985071104.

The previous prime is 2120126413. The next prime is 2120126429. The reversal of 2120126423 is 3246210212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120126423 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 (2120126429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319811 + ... + 326372.

It is an arithmetic number, because the mean of its divisors is an integer number (282059316).

Almost surely, 2^2120126423 is an apocalyptic number.

2120126423 is a deficient number, since it is larger than the sum of its proper divisors (136348105).

2120126423 is a wasteful number, since it uses less digits than its factorization.

2120126423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646393.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2120126423 is about 46044.8305784699. The cubic root of 2120126423 is about 1284.6571928948.

Adding to 2120126423 its reverse (3246210212), we get a palindrome (5366336635).

The spelling of 2120126423 in words is "two billion, one hundred twenty million, one hundred twenty-six thousand, four hundred twenty-three".