103191117777 has 40 divisors (see below), whose sum is σ = 168194568960. Its totient is φ = 62528444640.

The previous prime is 103191117769. The next prime is 103191117793. The reversal of 103191117777 is 777711191301.

It is a happy number.

It is not a de Polignac number, because 103191117777 - 2³ = 103191117769 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (103191117727) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9316999 + ... + 9328067.

It is an arithmetic number, because the mean of its divisors is an integer number (4204864224).

Almost surely, 2^103191117777 is an apocalyptic number.

It is an amenable number.

103191117777 is a deficient number, since it is larger than the sum of its proper divisors (65003451183).

103191117777 is a wasteful number, since it uses less digits than its factorization.

103191117777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21555 (or 21546 counting only the distinct ones).

The product of its (nonzero) digits is 64827, while the sum is 45.

The spelling of 103191117777 in words is "one hundred three billion, one hundred ninety-one million, one hundred seventeen thousand, seven hundred seventy-seven".