103123210512 has 80 divisors (see below), whose sum is σ = 305989145600. Its totient is φ = 29315696256.

The previous prime is 103123210511. The next prime is 103123210513. The reversal of 103123210512 is 215012321301.

It is an interprime number because it is at equal distance from previous prime (103123210511) and next prime (103123210513).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (103123210511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704278 + ... + 838005.

It is an arithmetic number, because the mean of its divisors is an integer number (3824864320).

Almost surely, 2^103123210512 is an apocalyptic number.

103123210512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103123210512 is an abundant number, since it is smaller than the sum of its proper divisors (202865935088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103123210512 is a wasteful number, since it uses less digits than its factorization.

103123210512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542500 (or 1542494 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 103123210512 its reverse (215012321301), we get a palindrome (318135531813).

The spelling of 103123210512 in words is "one hundred three billion, one hundred twenty-three million, two hundred ten thousand, five hundred twelve".