5210121423 has 32 divisors (see below), whose sum is σ = 8129013760. Its totient is φ = 2939483520.

The previous prime is 5210121421. The next prime is 5210121431. The reversal of 5210121423 is 3241210125.

5210121423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5210121423 - 2¹ = 5210121421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5210121423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5210121421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90436 + ... + 136377.

It is an arithmetic number, because the mean of its divisors is an integer number (254031680).

Almost surely, 2^5210121423 is an apocalyptic number.

5210121423 is a deficient number, since it is larger than the sum of its proper divisors (2918892337).

5210121423 is a wasteful number, since it uses less digits than its factorization.

5210121423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226879.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 5210121423 is about 72181.1708342280. The cubic root of 5210121423 is about 1733.6015299211.

Adding to 5210121423 its reverse (3241210125), we get a palindrome (8451331548).

The spelling of 5210121423 in words is "five billion, two hundred ten million, one hundred twenty-one thousand, four hundred twenty-three".