213121331110 has 8 divisors (see below), whose sum is σ = 383618396016. Its totient is φ = 85248532440.

The previous prime is 213121331083. The next prime is 213121331179. The reversal of 213121331110 is 11133121312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10656066546 + ... + 10656066565.

It is an arithmetic number, because the mean of its divisors is an integer number (47952299502).

Almost surely, 2^213121331110 is an apocalyptic number.

213121331110 is a deficient number, since it is larger than the sum of its proper divisors (170497064906).

213121331110 is a wasteful number, since it uses less digits than its factorization.

213121331110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21312133118.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 213121331110 its reverse (11133121312), we get a palindrome (224254452422).

The spelling of 213121331110 in words is "two hundred thirteen billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred ten".