103031131211 has 4 divisors (see below), whose sum is σ = 103038192624. Its totient is φ = 103024069800.

The previous prime is 103031131201. The next prime is 103031131271. The reversal of 103031131211 is 112131130301.

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

It is a cyclic number.

It is not a de Polignac number, because 103031131211 - 2²⁶ = 102964022347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103031131211.

It is not an unprimeable number, because it can be changed into a prime (103031131201) 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, 3508775 + ... + 3538016.

It is an arithmetic number, because the mean of its divisors is an integer number (25759548156).

Almost surely, 2^103031131211 is an apocalyptic number.

103031131211 is a deficient number, since it is larger than the sum of its proper divisors (7061413).

103031131211 is an equidigital number, since it uses as much as digits as its factorization.

103031131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061412.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 103031131211 its reverse (112131130301), we get a palindrome (215162261512).

The spelling of 103031131211 in words is "one hundred three billion, thirty-one million, one hundred thirty-one thousand, two hundred eleven".