1011212113 has 8 divisors (see below), whose sum is σ = 1019140200. Its totient is φ = 1003312128.

The previous prime is 1011212093. The next prime is 1011212117. The reversal of 1011212113 is 3112121101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34774609 + 976437504 = 5897^2 + 31248^2 .

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 1011212113 - 2⁹ = 1011211601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011212093 and 1011212102.

It is not an unprimeable number, because it can be changed into a prime (1011212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68343 + ... + 81811.

It is an arithmetic number, because the mean of its divisors is an integer number (127392525).

Almost surely, 2^1011212113 is an apocalyptic number.

It is an amenable number.

1011212113 is a deficient number, since it is larger than the sum of its proper divisors (7928087).

1011212113 is a wasteful number, since it uses less digits than its factorization.

1011212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1011212113 is about 31799.5615221342. The cubic root of 1011212113 is about 1003.7234894186.

Adding to 1011212113 its reverse (3112121101), we get a palindrome (4123333214).

The spelling of 1011212113 in words is "one billion, eleven million, two hundred twelve thousand, one hundred thirteen".