101031123103 has 4 divisors (see below), whose sum is σ = 102743515080. Its totient is φ = 99318731128.

The previous prime is 101031123077. The next prime is 101031123107. The reversal of 101031123103 is 301321130101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301321130101 = 907 ⋅332217343.

It is a cyclic number.

It is not a de Polignac number, because 101031123103 - 2²⁹ = 100494252191 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 (101031123107) 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, 856195900 + ... + 856196017.

It is an arithmetic number, because the mean of its divisors is an integer number (25685878770).

Almost surely, 2^101031123103 is an apocalyptic number.

101031123103 is a deficient number, since it is larger than the sum of its proper divisors (1712391977).

101031123103 is an equidigital number, since it uses as much as digits as its factorization.

101031123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712391976.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 101031123103 its reverse (301321130101), we get a palindrome (402352253204).

The spelling of 101031123103 in words is "one hundred one billion, thirty-one million, one hundred twenty-three thousand, one hundred three".