103031020312111 has 4 divisors (see below), whose sum is σ = 103035177998824. Its totient is φ = 103026862625400.

The previous prime is 103031020312093. The next prime is 103031020312133. The reversal of 103031020312111 is 111213020130301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103031020312111 is a prime.

It is a super-2 number, since 2×103031020312111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031020316111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2078806185 + ... + 2078855746.

It is an arithmetic number, because the mean of its divisors is an integer number (25758794499706).

Almost surely, 2^{103031020312111} is an apocalyptic number.

103031020312111 is a deficient number, since it is larger than the sum of its proper divisors (4157686713).

103031020312111 is an equidigital number, since it uses as much as digits as its factorization.

103031020312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157686712.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 103031020312111 its reverse (111213020130301), we get a palindrome (214244040442412).

The spelling of 103031020312111 in words is "one hundred three trillion, thirty-one billion, twenty million, three hundred twelve thousand, one hundred eleven".