211451013 has 16 divisors (see below), whose sum is σ = 313675200. Its totient is φ = 140780880.

The previous prime is 211451011. The next prime is 211451021. The reversal of 211451013 is 310154112.

211451013 is a `hidden beast` number, since 211 + 451 + 0 + 1 + 3 = 666.

211451013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211451013 - 2¹ = 211451011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211451011) 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, 17398 + ... + 26936.

It is an arithmetic number, because the mean of its divisors is an integer number (19604700).

Almost surely, 2^211451013 is an apocalyptic number.

It is an amenable number.

211451013 is a deficient number, since it is larger than the sum of its proper divisors (102224187).

211451013 is an equidigital number, since it uses as much as digits as its factorization.

211451013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369 (or 10363 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 211451013 is about 14541.3552669619. The cubic root of 211451013 is about 595.7580555209.

The spelling of 211451013 in words is "two hundred eleven million, four hundred fifty-one thousand, thirteen".