1113357971 has 8 divisors (see below), whose sum is σ = 1222025664. Its totient is φ = 1005932520.

The previous prime is 1113357943. The next prime is 1113357977. The reversal of 1113357971 is 1797533111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1113357971 - 2¹⁰ = 1113356947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113357977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308681 + ... + 312266.

It is an arithmetic number, because the mean of its divisors is an integer number (152753208).

Almost surely, 2^1113357971 is an apocalyptic number.

1113357971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1113357971 is a deficient number, since it is larger than the sum of its proper divisors (108667693).

1113357971 is a wasteful number, since it uses less digits than its factorization.

1113357971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621121.

The product of its digits is 19845, while the sum is 38.

The square root of 1113357971 is about 33367.0192105918. The cubic root of 1113357971 is about 1036.4418501929.

The spelling of 1113357971 in words is "one billion, one hundred thirteen million, three hundred fifty-seven thousand, nine hundred seventy-one".