210011013 has 12 divisors (see below), whose sum is σ = 321193548. Its totient is φ = 131771520.

The previous prime is 210010991. The next prime is 210011029. The reversal of 210011013 is 310110012.

It can be written as a sum of positive squares in 2 ways, for example, as 192016449 + 17994564 = 13857^2 + 4242^2 .

It is not a de Polignac number, because 210011013 - 2⁵ = 210010981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210010986 and 210011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 686158 + ... + 686463.

It is an arithmetic number, because the mean of its divisors is an integer number (26766129).

Almost surely, 2^210011013 is an apocalyptic number.

It is an amenable number.

210011013 is a deficient number, since it is larger than the sum of its proper divisors (111182535).

210011013 is a wasteful number, since it uses less digits than its factorization.

210011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372644 (or 1372641 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 210011013 is about 14491.7567258080. The cubic root of 210011013 is about 594.4025856363.

Adding to 210011013 its reverse (310110012), we get a palindrome (520121025).

The spelling of 210011013 in words is "two hundred ten million, eleven thousand, thirteen".