123301131211 has 4 divisors (see below), whose sum is σ = 123301851552. Its totient is φ = 123300410872.

The previous prime is 123301131167. The next prime is 123301131229. The reversal of 123301131211 is 112131103321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 112131103321 = 55207 ⋅2031103.

It is a cyclic number.

It is not a de Polignac number, because 123301131211 - 2²¹ = 123299034059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123301131271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59886 + ... + 500188.

It is an arithmetic number, because the mean of its divisors is an integer number (30825462888).

Almost surely, 2^123301131211 is an apocalyptic number.

123301131211 is a deficient number, since it is larger than the sum of its proper divisors (720341).

123301131211 is an equidigital number, since it uses as much as digits as its factorization.

123301131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720340.

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

Adding to 123301131211 its reverse (112131103321), we get a palindrome (235432234532).

The spelling of 123301131211 in words is "one hundred twenty-three billion, three hundred one million, one hundred thirty-one thousand, two hundred eleven".