10220231513 has 4 divisors (see below), whose sum is σ = 10821421620. Its totient is φ = 9619041408.

The previous prime is 10220231507. The next prime is 10220231531. The reversal of 10220231513 is 31513202201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7823933209 + 2396298304 = 88453^2 + 48952^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220231513 - 2⁶ = 10220231449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10220231503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300595028 + ... + 300595061.

It is an arithmetic number, because the mean of its divisors is an integer number (2705355405).

Almost surely, 2^10220231513 is an apocalyptic number.

It is an amenable number.

10220231513 is a deficient number, since it is larger than the sum of its proper divisors (601190107).

10220231513 is an equidigital number, since it uses as much as digits as its factorization.

10220231513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601190106.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 10220231513 its reverse (31513202201), we get a palindrome (41733433714).

The spelling of 10220231513 in words is "ten billion, two hundred twenty million, two hundred thirty-one thousand, five hundred thirteen".