2056121511 has 8 divisors (see below), whose sum is σ = 2744012544. Its totient is φ = 1369489080.

The previous prime is 2056121467. The next prime is 2056121533. The reversal of 2056121511 is 1151216502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2056121511 - 2⁷ = 2056121383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056121611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310831 + ... + 317376.

It is an arithmetic number, because the mean of its divisors is an integer number (343001568).

Almost surely, 2^2056121511 is an apocalyptic number.

2056121511 is a deficient number, since it is larger than the sum of its proper divisors (687891033).

2056121511 is a wasteful number, since it uses less digits than its factorization.

2056121511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629301.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 2056121511 is about 45344.4760803342. The cubic root of 2056121511 is about 1271.5972857150.

The spelling of 2056121511 in words is "two billion, fifty-six million, one hundred twenty-one thousand, five hundred eleven".