1171201053 has 16 divisors (see below), whose sum is σ = 1705594176. Its totient is φ = 708973440.

The previous prime is 1171201027. The next prime is 1171201061. The reversal of 1171201053 is 3501021711.

It is a happy number.

It is not a de Polignac number, because 1171201053 - 2¹⁰ = 1171200029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171201013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7575 + ... + 48987.

It is an arithmetic number, because the mean of its divisors is an integer number (106599636).

Almost surely, 2^1171201053 is an apocalyptic number.

It is an amenable number.

1171201053 is a deficient number, since it is larger than the sum of its proper divisors (534393123).

1171201053 is a wasteful number, since it uses less digits than its factorization.

1171201053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42284.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1171201053 is about 34222.8148024092. The cubic root of 1171201053 is about 1054.0886848121.

Adding to 1171201053 its reverse (3501021711), we get a palindrome (4672222764).

The spelling of 1171201053 in words is "one billion, one hundred seventy-one million, two hundred one thousand, fifty-three".