1171401101 has 12 divisors (see below), whose sum is σ = 1272285756. Its totient is φ = 1072077120.

The previous prime is 1171401059. The next prime is 1171401103. The reversal of 1171401101 is 1011041711.

It can be written as a sum of positive squares in 2 ways, for example, as 411075625 + 760325476 = 20275^2 + 27574^2 .

It is not a de Polignac number, because 1171401101 - 2¹⁰ = 1171400077 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 1171401101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171401103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1443986 + ... + 1444796.

It is an arithmetic number, because the mean of its divisors is an integer number (106023813).

Almost surely, 2^1171401101 is an apocalyptic number.

It is an amenable number.

1171401101 is a deficient number, since it is larger than the sum of its proper divisors (100884655).

1171401101 is an frugal number, since it uses more digits than its factorization.

1171401101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 17.

The square root of 1171401101 is about 34225.7374062269. The cubic root of 1171401101 is about 1054.1486962360.

Adding to 1171401101 its reverse (1011041711), we get a palindrome (2182442812).

The spelling of 1171401101 in words is "one billion, one hundred seventy-one million, four hundred one thousand, one hundred one".