103111557309 has 20 divisors (see below), whose sum is σ = 154069358080. Its totient is φ = 68723850600.

The previous prime is 103111557281. The next prime is 103111557323. The reversal of 103111557309 is 903755111301.

It is not a de Polignac number, because 103111557309 - 2⁷ = 103111557181 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 (103111557389) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171012 + ... + 485250.

It is an arithmetic number, because the mean of its divisors is an integer number (7703467904).

Almost surely, 2^103111557309 is an apocalyptic number.

It is an amenable number.

103111557309 is a deficient number, since it is larger than the sum of its proper divisors (50957800771).

103111557309 is an equidigital number, since it uses as much as digits as its factorization.

103111557309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318302 (or 318293 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The spelling of 103111557309 in words is "one hundred three billion, one hundred eleven million, five hundred fifty-seven thousand, three hundred nine".