123211300523 has 4 divisors (see below), whose sum is σ = 123212809440. Its totient is φ = 123209791608.

The previous prime is 123211300519. The next prime is 123211300561. The reversal of 123211300523 is 325003112321.

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 123211300523 - 2² = 123211300519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123211300123) 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, 624515 + ... + 797772.

It is an arithmetic number, because the mean of its divisors is an integer number (30803202360).

Almost surely, 2^123211300523 is an apocalyptic number.

123211300523 is a deficient number, since it is larger than the sum of its proper divisors (1508917).

123211300523 is an equidigital number, since it uses as much as digits as its factorization.

123211300523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508916.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 123211300523 its reverse (325003112321), we get a palindrome (448214412844).

The spelling of 123211300523 in words is "one hundred twenty-three billion, two hundred eleven million, three hundred thousand, five hundred twenty-three".