213111203130231 has 32 divisors (see below), whose sum is σ = 333605503296000. Its totient is φ = 118455330704256.

The previous prime is 213111203130227. The next prime is 213111203130269. The reversal of 213111203130231 is 132031302111312.

It is not a de Polignac number, because 213111203130231 - 2² = 213111203130227 is a prime.

It is a super-2 number, since 2×213111203130231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111203130131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33166981 + ... + 39067518.

It is an arithmetic number, because the mean of its divisors is an integer number (10425171978000).

Almost surely, 2^{213111203130231} is an apocalyptic number.

213111203130231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213111203130231 is a deficient number, since it is larger than the sum of its proper divisors (120494300165769).

213111203130231 is a wasteful number, since it uses less digits than its factorization.

213111203130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72238343.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 213111203130231 its reverse (132031302111312), we get a palindrome (345142505241543).

The spelling of 213111203130231 in words is "two hundred thirteen trillion, one hundred eleven billion, two hundred three million, one hundred thirty thousand, two hundred thirty-one".