103100312121200 has 120 divisors (see below), whose sum is σ = 249557008662528. Its totient is φ = 40931682877440.

The previous prime is 103100312121143. The next prime is 103100312121211. The reversal of 103100312121200 is 2121213001301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31885457 + ... + 34969743.

Almost surely, 2^{103100312121200} is an apocalyptic number.

103100312121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103100312121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124778504331264).

103100312121200 is an abundant number, since it is smaller than the sum of its proper divisors (146456696541328).

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

103100312121200 is a wasteful number, since it uses less digits than its factorization.

103100312121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084931 (or 3084920 counting only the distinct ones).

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

Adding to 103100312121200 its reverse (2121213001301), we get a palindrome (105221525122501).

The spelling of 103100312121200 in words is "one hundred three trillion, one hundred billion, three hundred twelve million, one hundred twenty-one thousand, two hundred".