1210111113 has 8 divisors (see below), whose sum is σ = 1619183968. Its totient is φ = 803889504.

The previous prime is 1210111109. The next prime is 1210111127. The reversal of 1210111113 is 3111110121.

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

It is not a de Polignac number, because 1210111113 - 2² = 1210111109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210111193) 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, 711820 + ... + 713517.

It is an arithmetic number, because the mean of its divisors is an integer number (202397996).

Almost surely, 2^1210111113 is an apocalyptic number.

It is an amenable number.

1210111113 is a deficient number, since it is larger than the sum of its proper divisors (409072855).

1210111113 is a wasteful number, since it uses less digits than its factorization.

1210111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425623.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1210111113 is about 34786.6513622683. The cubic root of 1210111113 is about 1065.6348534711.

Adding to 1210111113 its reverse (3111110121), we get a palindrome (4321221234).

The spelling of 1210111113 in words is "one billion, two hundred ten million, one hundred eleven thousand, one hundred thirteen".