103011211201123 has 4 divisors (see below), whose sum is σ = 103011366409920. Its totient is φ = 103011055992328.

The previous prime is 103011211201109. The next prime is 103011211201247. The reversal of 103011211201123 is 321102112110301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103011211201123 is a prime.

It is a super-2 number, since 2×103011211201123² (a number of 29 digits) contains 22 as substring.

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 103011211201123.

It is not an unprimeable number, because it can be changed into a prime (103011211204123) 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, 76604563 + ... + 77937676.

It is an arithmetic number, because the mean of its divisors is an integer number (25752841602480).

Almost surely, 2^{103011211201123} is an apocalyptic number.

103011211201123 is a deficient number, since it is larger than the sum of its proper divisors (155208797).

103011211201123 is an equidigital number, since it uses as much as digits as its factorization.

103011211201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155208796.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 103011211201123 its reverse (321102112110301), we get a palindrome (424113323311424).

The spelling of 103011211201123 in words is "one hundred three trillion, eleven billion, two hundred eleven million, two hundred one thousand, one hundred twenty-three".