2151013111 has 16 divisors (see below), whose sum is σ = 2456715744. Its totient is φ = 1865723904.

The previous prime is 2151013079. The next prime is 2151013127. The reversal of 2151013111 is 1113101512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2151013111 - 2⁵ = 2151013079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151013411) 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 15 ways as a sum of consecutive naturals, for example, 134535 + ... + 149671.

It is an arithmetic number, because the mean of its divisors is an integer number (153544734).

Almost surely, 2^2151013111 is an apocalyptic number.

2151013111 is a deficient number, since it is larger than the sum of its proper divisors (305702633).

2151013111 is a wasteful number, since it uses less digits than its factorization.

2151013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15810.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 2151013111 is about 46379.0158476870. The cubic root of 2151013111 is about 1290.8655751595.

Adding to 2151013111 its reverse (1113101512), we get a palindrome (3264114623).

The spelling of 2151013111 in words is "two billion, one hundred fifty-one million, thirteen thousand, one hundred eleven".