711202421 has 2 divisors, whose sum is σ = 711202422. Its totient is φ = 711202420.

The previous prime is 711202411. The next prime is 711202423. The reversal of 711202421 is 124202117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482285521 + 228916900 = 21961^2 + 15130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-711202421 is a prime.

It is a super-2 number, since 2×711202421² = 1011617767272522482, which contains 22 as substring.

Together with 711202423, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 711202393 and 711202402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (711202423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355601210 + 355601211.

It is an arithmetic number, because the mean of its divisors is an integer number (355601211).

Almost surely, 2^711202421 is an apocalyptic number.

It is an amenable number.

711202421 is a deficient number, since it is larger than the sum of its proper divisors (1).

711202421 is an equidigital number, since it uses as much as digits as its factorization.

711202421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 711202421 is about 26668.3786721278. The cubic root of 711202421 is about 892.6154687964.

Adding to 711202421 its reverse (124202117), we get a palindrome (835404538).

The spelling of 711202421 in words is "seven hundred eleven million, two hundred two thousand, four hundred twenty-one".