213103021011 has 16 divisors (see below), whose sum is σ = 286256699520. Its totient is φ = 141011305920.

The previous prime is 213103020979. The next prime is 213103021013. The reversal of 213103021011 is 110120301312.

It is a happy number.

It is not a de Polignac number, because 213103021011 - 2⁵ = 213103020979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213103021013) 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, 85800 + ... + 658458.

It is an arithmetic number, because the mean of its divisors is an integer number (17891043720).

Almost surely, 2^213103021011 is an apocalyptic number.

213103021011 is a deficient number, since it is larger than the sum of its proper divisors (73153678509).

213103021011 is a wasteful number, since it uses less digits than its factorization.

213103021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573586.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 213103021011 its reverse (110120301312), we get a palindrome (323223322323).

The spelling of 213103021011 in words is "two hundred thirteen billion, one hundred three million, twenty-one thousand, eleven".