11171972053 has 8 divisors (see below), whose sum is σ = 12189072096. Its totient is φ = 10155116400.

The previous prime is 11171972041. The next prime is 11171972057. The reversal of 11171972053 is 35027917111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11171972053 - 2⁹ = 11171971541 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 (11171972057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42075 + ... + 155287.

It is an arithmetic number, because the mean of its divisors is an integer number (1523634012).

Almost surely, 2^11171972053 is an apocalyptic number.

It is an amenable number.

11171972053 is a deficient number, since it is larger than the sum of its proper divisors (1017100043).

11171972053 is a wasteful number, since it uses less digits than its factorization.

11171972053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122195.

The product of its (nonzero) digits is 13230, while the sum is 37.

The spelling of 11171972053 in words is "eleven billion, one hundred seventy-one million, nine hundred seventy-two thousand, fifty-three".