5212123451 has 2 divisors, whose sum is σ = 5212123452. Its totient is φ = 5212123450.

The previous prime is 5212123447. The next prime is 5212123463. The reversal of 5212123451 is 1543212125.

5212123451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5212123451 - 2² = 5212123447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5212123451.

It is not a weakly prime, because it can be changed into another prime (5212122451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606061725 + 2606061726.

It is an arithmetic number, because the mean of its divisors is an integer number (2606061726).

Almost surely, 2^5212123451 is an apocalyptic number.

5212123451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5212123451 is an equidigital number, since it uses as much as digits as its factorization.

5212123451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 5212123451 is about 72195.0375787699. The cubic root of 5212123451 is about 1733.8235512565.

Adding to 5212123451 its reverse (1543212125), we get a palindrome (6755335576).

The spelling of 5212123451 in words is "five billion, two hundred twelve million, one hundred twenty-three thousand, four hundred fifty-one".