213111231010 has 16 divisors (see below), whose sum is σ = 383846299200. Its totient is φ = 85189807216.

The previous prime is 213111230989. The next prime is 213111231013. The reversal of 213111231010 is 10132111312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213111231013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6819280 + ... + 6850459.

It is an arithmetic number, because the mean of its divisors is an integer number (23990393700).

Almost surely, 2^213111231010 is an apocalyptic number.

213111231010 is a deficient number, since it is larger than the sum of its proper divisors (170735068190).

213111231010 is a wasteful number, since it uses less digits than its factorization.

213111231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13671305.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 213111231010 its reverse (10132111312), we get a palindrome (223243342322).

The spelling of 213111231010 in words is "two hundred thirteen billion, one hundred eleven million, two hundred thirty-one thousand, ten".