10231380287 has 4 divisors (see below), whose sum is σ = 10239209736. Its totient is φ = 10223550840.

The previous prime is 10231380277. The next prime is 10231380343. The reversal of 10231380287 is 78208313201.

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

It is a cyclic number.

It is not a de Polignac number, because 10231380287 - 2⁸ = 10231380031 is a prime.

It is a super-2 number, since 2×10231380287² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231380217) 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, 3912764 + ... + 3915377.

It is an arithmetic number, because the mean of its divisors is an integer number (2559802434).

Almost surely, 2^10231380287 is an apocalyptic number.

10231380287 is a deficient number, since it is larger than the sum of its proper divisors (7829449).

10231380287 is an equidigital number, since it uses as much as digits as its factorization.

10231380287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7829448.

The product of its (nonzero) digits is 16128, while the sum is 35.

Adding to 10231380287 its reverse (78208313201), we get a palindrome (88439693488).

The spelling of 10231380287 in words is "ten billion, two hundred thirty-one million, three hundred eighty thousand, two hundred eighty-seven".