2051234511 has 16 divisors (see below), whose sum is σ = 2746065408. Its totient is φ = 1361959200.

The previous prime is 2051234477. The next prime is 2051234561. The reversal of 2051234511 is 1154321502.

It is a happy number.

It is not a de Polignac number, because 2051234511 - 2¹⁰ = 2051233487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051234561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119366 + ... + 1121196.

It is an arithmetic number, because the mean of its divisors is an integer number (171629088).

Almost surely, 2^2051234511 is an apocalyptic number.

2051234511 is a deficient number, since it is larger than the sum of its proper divisors (694830897).

2051234511 is a wasteful number, since it uses less digits than its factorization.

2051234511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2051234511 is about 45290.5565322397. The cubic root of 2051234511 is about 1270.5890402063.

The spelling of 2051234511 in words is "two billion, fifty-one million, two hundred thirty-four thousand, five hundred eleven".