1115012101 has 24 divisors (see below), whose sum is σ = 1356191424. Its totient is φ = 912320640.

The previous prime is 1115012089. The next prime is 1115012113. The reversal of 1115012101 is 1012105111.

It is an interprime number because it is at equal distance from previous prime (1115012089) and next prime (1115012113).

It is not a de Polignac number, because 1115012101 - 2¹³ = 1115003909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115012141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992326 + ... + 993448.

It is an arithmetic number, because the mean of its divisors is an integer number (56507976).

Almost surely, 2^1115012101 is an apocalyptic number.

It is an amenable number.

1115012101 is a deficient number, since it is larger than the sum of its proper divisors (241179323).

1115012101 is a wasteful number, since it uses less digits than its factorization.

1115012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 1115012101 is about 33391.7969118165. The cubic root of 1115012101 is about 1036.9548811205.

Adding to 1115012101 its reverse (1012105111), we get a palindrome (2127117212).

The spelling of 1115012101 in words is "one billion, one hundred fifteen million, twelve thousand, one hundred one".