113131211 has 8 divisors (see below), whose sum is σ = 114487248. Its totient is φ = 111780000.

The previous prime is 113131199. The next prime is 113131223. The reversal of 113131211 is 112131311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113131199) and next prime (113131223).

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 113131211 - 2⁶ = 113131147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113131511) 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, 68981 + ... + 70601.

It is an arithmetic number, because the mean of its divisors is an integer number (14310906).

Almost surely, 2^113131211 is an apocalyptic number.

113131211 is a deficient number, since it is larger than the sum of its proper divisors (1356037).

113131211 is a wasteful number, since it uses less digits than its factorization.

113131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413.

The product of its digits is 18, while the sum is 14.

The square root of 113131211 is about 10636.3156685010. The cubic root of 113131211 is about 483.6458645617.

Adding to 113131211 its reverse (112131311), we get a palindrome (225262522).

The spelling of 113131211 in words is "one hundred thirteen million, one hundred thirty-one thousand, two hundred eleven".