123403142211 has 4 divisors (see below), whose sum is σ = 164537522952. Its totient is φ = 82268761472.

The previous prime is 123403142209. The next prime is 123403142227. The reversal of 123403142211 is 112241304321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123403142211 - 2¹ = 123403142209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123403142201) 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, 20567190366 + ... + 20567190371.

It is an arithmetic number, because the mean of its divisors is an integer number (41134380738).

Almost surely, 2^123403142211 is an apocalyptic number.

123403142211 is a deficient number, since it is larger than the sum of its proper divisors (41134380741).

123403142211 is an equidigital number, since it uses as much as digits as its factorization.

123403142211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41134380740.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123403142211 its reverse (112241304321), we get a palindrome (235644446532).

The spelling of 123403142211 in words is "one hundred twenty-three billion, four hundred three million, one hundred forty-two thousand, two hundred eleven".