213111230303012 has 6 divisors (see below), whose sum is σ = 372944653030278. Its totient is φ = 106555615151504.

The previous prime is 213111230302969. The next prime is 213111230303047. The reversal of 213111230303012 is 210303032111312.

It can be written as a sum of positive squares in only one way, i.e., 186121189605376 + 26990040697636 = 13642624^2 + 5195194^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26638903787873 + ... + 26638903787880.

It is an arithmetic number, because the mean of its divisors is an integer number (62157442171713).

Almost surely, 2^{213111230303012} is an apocalyptic number.

It is an amenable number.

213111230303012 is a deficient number, since it is larger than the sum of its proper divisors (159833422727266).

213111230303012 is a wasteful number, since it uses less digits than its factorization.

213111230303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53277807575757 (or 53277807575755 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 213111230303012 its reverse (210303032111312), we get a palindrome (423414262414324).

The spelling of 213111230303012 in words is "two hundred thirteen trillion, one hundred eleven billion, two hundred thirty million, three hundred three thousand, twelve".