10003123011 has 16 divisors (see below), whose sum is σ = 15258392064. Its totient is φ = 5710243584.

The previous prime is 10003123007. The next prime is 10003123037. The reversal of 10003123011 is 11032130001.

It is not a de Polignac number, because 10003123011 - 2² = 10003123007 is a prime.

It is a super-2 number, since 2×10003123011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10003523011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221646 + ... + 262931.

It is an arithmetic number, because the mean of its divisors is an integer number (953649504).

Almost surely, 2^10003123011 is an apocalyptic number.

10003123011 is a deficient number, since it is larger than the sum of its proper divisors (5255269053).

10003123011 is an equidigital number, since it uses as much as digits as its factorization.

10003123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485570.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 10003123011 its reverse (11032130001), we get a palindrome (21035253012).

The spelling of 10003123011 in words is "ten billion, three million, one hundred twenty-three thousand, eleven".