103211959139 has 4 divisors (see below), whose sum is σ = 103730612400. Its totient is φ = 102693305880.

The previous prime is 103211959129. The next prime is 103211959141. The reversal of 103211959139 is 931959112301.

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-103211959139 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 103211959139.

It is not an unprimeable number, because it can be changed into a prime (103211959129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259326332 + ... + 259326729.

It is an arithmetic number, because the mean of its divisors is an integer number (25932653100).

Almost surely, 2^103211959139 is an apocalyptic number.

103211959139 is a deficient number, since it is larger than the sum of its proper divisors (518653261).

103211959139 is an equidigital number, since it uses as much as digits as its factorization.

103211959139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518653260.

The product of its (nonzero) digits is 65610, while the sum is 44.

The spelling of 103211959139 in words is "one hundred three billion, two hundred eleven million, nine hundred fifty-nine thousand, one hundred thirty-nine".