123202103111 has 4 divisors (see below), whose sum is σ = 123297684000. Its totient is φ = 123106522224.

The previous prime is 123202103093. The next prime is 123202103113. The reversal of 123202103111 is 111301202321.

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 123202103111 - 2¹⁴ = 123202086727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123202103111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123202103113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47788511 + ... + 47791088.

It is an arithmetic number, because the mean of its divisors is an integer number (30824421000).

Almost surely, 2^123202103111 is an apocalyptic number.

123202103111 is a deficient number, since it is larger than the sum of its proper divisors (95580889).

123202103111 is an equidigital number, since it uses as much as digits as its factorization.

123202103111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95580888.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123202103111 its reverse (111301202321), we get a palindrome (234503305432).

The spelling of 123202103111 in words is "one hundred twenty-three billion, two hundred two million, one hundred three thousand, one hundred eleven".