10031121103 has 4 divisors (see below), whose sum is σ = 10031550400. Its totient is φ = 10030691808.

The previous prime is 10031121091. The next prime is 10031121109. The reversal of 10031121103 is 30112113001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30112113001 = 5107 ⋅5896243.

It is a cyclic number.

It is not a de Polignac number, because 10031121103 - 2¹⁷ = 10030990031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031121109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177450 + ... + 227047.

It is an arithmetic number, because the mean of its divisors is an integer number (2507887600).

Almost surely, 2^10031121103 is an apocalyptic number.

10031121103 is a deficient number, since it is larger than the sum of its proper divisors (429297).

10031121103 is an equidigital number, since it uses as much as digits as its factorization.

10031121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429296.

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

Adding to 10031121103 its reverse (30112113001), we get a palindrome (40143234104).

The spelling of 10031121103 in words is "ten billion, thirty-one million, one hundred twenty-one thousand, one hundred three".