113111002001 has 8 divisors (see below), whose sum is σ = 119786343264. Its totient is φ = 106438077760.

The previous prime is 113111001979. The next prime is 113111002051. The reversal of 113111002001 is 100200111311.

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 a de Polignac number, because none of the positive numbers 2^k-113111002001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113111002051) 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, 507455 + ... + 695508.

It is an arithmetic number, because the mean of its divisors is an integer number (14973292908).

Almost surely, 2^113111002001 is an apocalyptic number.

It is an amenable number.

113111002001 is a deficient number, since it is larger than the sum of its proper divisors (6675341263).

113111002001 is a wasteful number, since it uses less digits than its factorization.

113111002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208511.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 113111002001 its reverse (100200111311), we get a palindrome (213311113312).

It can be divided in two parts, 11311 and 1002001, that multiplied together give a palindrome (11333633311).

The spelling of 113111002001 in words is "one hundred thirteen billion, one hundred eleven million, two thousand, one".