10011031123 has 2 divisors, whose sum is σ = 10011031124. Its totient is φ = 10011031122.

The previous prime is 10011031103. The next prime is 10011031141. The reversal of 10011031123 is 32113011001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011031123 is a prime.

It is a super-2 number, since 2×10011031123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10011031103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005515561 + 5005515562.

It is an arithmetic number, because the mean of its divisors is an integer number (5005515562).

Almost surely, 2^10011031123 is an apocalyptic number.

10011031123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011031123 is an equidigital number, since it uses as much as digits as its factorization.

10011031123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10011031123 its reverse (32113011001), we get a palindrome (42124042124).

The spelling of 10011031123 in words is "ten billion, eleven million, thirty-one thousand, one hundred twenty-three".