1231130212211 has 8 divisors (see below), whose sum is σ = 1232511100224. Its totient is φ = 1229750009280.

The previous prime is 1231130212189. The next prime is 1231130212229. The reversal of 1231130212211 is 1122120311321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231130212211 - 2²² = 1231126017907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231130212111) 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, 3468071 + ... + 3806543.

It is an arithmetic number, because the mean of its divisors is an integer number (154063887528).

Almost surely, 2^{1231130212211} is an apocalyptic number.

1231130212211 is a deficient number, since it is larger than the sum of its proper divisors (1380888013).

1231130212211 is a wasteful number, since it uses less digits than its factorization.

1231130212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342541.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1231130212211 its reverse (1122120311321), we get a palindrome (2353250523532).

The spelling of 1231130212211 in words is "one trillion, two hundred thirty-one billion, one hundred thirty million, two hundred twelve thousand, two hundred eleven".