514020232421 has 2 divisors, whose sum is σ = 514020232422. Its totient is φ = 514020232420.

The previous prime is 514020232387. The next prime is 514020232423. The reversal of 514020232421 is 124232020415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467110737025 + 46909495396 = 683455^2 + 216586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514020232421 is a prime.

Together with 514020232423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514020232423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257010116210 + 257010116211.

It is an arithmetic number, because the mean of its divisors is an integer number (257010116211).

Almost surely, 2^514020232421 is an apocalyptic number.

It is an amenable number.

514020232421 is a deficient number, since it is larger than the sum of its proper divisors (1).

514020232421 is an equidigital number, since it uses as much as digits as its factorization.

514020232421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 514020232421 its reverse (124232020415), we get a palindrome (638252252836).

The spelling of 514020232421 in words is "five hundred fourteen billion, twenty million, two hundred thirty-two thousand, four hundred twenty-one".