10534345421 has 2 divisors, whose sum is σ = 10534345422. Its totient is φ = 10534345420.

The previous prime is 10534345387. The next prime is 10534345469. The reversal of 10534345421 is 12454343501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10105275625 + 429069796 = 100525^2 + 20714^2 .

It is a cyclic number.

It is not a de Polignac number, because 10534345421 - 2⁶ = 10534345357 is a prime.

It is a super-2 number, since 2×10534345421² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10534345121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5267172710 + 5267172711.

It is an arithmetic number, because the mean of its divisors is an integer number (5267172711).

Almost surely, 2^10534345421 is an apocalyptic number.

It is an amenable number.

10534345421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10534345421 is an equidigital number, since it uses as much as digits as its factorization.

10534345421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 10534345421 its reverse (12454343501), we get a palindrome (22988688922).

The spelling of 10534345421 in words is "ten billion, five hundred thirty-four million, three hundred forty-five thousand, four hundred twenty-one".