10123222787 has 4 divisors (see below), whose sum is σ = 10146282960. Its totient is φ = 10100162616.

The previous prime is 10123222751. The next prime is 10123222843. The reversal of 10123222787 is 78722232101.

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 10123222787 - 2²⁰ = 10122174211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123222987) 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, 11529428 + ... + 11530305.

It is an arithmetic number, because the mean of its divisors is an integer number (2536570740).

Almost surely, 2^10123222787 is an apocalyptic number.

10123222787 is a deficient number, since it is larger than the sum of its proper divisors (23060173).

10123222787 is an equidigital number, since it uses as much as digits as its factorization.

10123222787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23060172.

The product of its (nonzero) digits is 18816, while the sum is 35.

Adding to 10123222787 its reverse (78722232101), we get a palindrome (88845454888).

The spelling of 10123222787 in words is "ten billion, one hundred twenty-three million, two hundred twenty-two thousand, seven hundred eighty-seven".