10142322521 has 2 divisors, whose sum is σ = 10142322522. Its totient is φ = 10142322520.

The previous prime is 10142322517. The next prime is 10142322611. The reversal of 10142322521 is 12522324101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6343326025 + 3798996496 = 79645^2 + 61636^2 .

It is a cyclic number.

It is not a de Polignac number, because 10142322521 - 2² = 10142322517 is a prime.

It is a super-2 number, since 2×10142322521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10142382521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5071161260 + 5071161261.

It is an arithmetic number, because the mean of its divisors is an integer number (5071161261).

Almost surely, 2^10142322521 is an apocalyptic number.

It is an amenable number.

10142322521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10142322521 is an equidigital number, since it uses as much as digits as its factorization.

10142322521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10142322521 its reverse (12522324101), we get a palindrome (22664646622).

The spelling of 10142322521 in words is "ten billion, one hundred forty-two million, three hundred twenty-two thousand, five hundred twenty-one".