121301200323100 has 72 divisors (see below), whose sum is σ = 300886122055680. Its totient is φ = 41580806205120.

The previous prime is 121301200323053. The next prime is 121301200323101. The reversal of 121301200323100 is 1323002103121.

It is a super-2 number, since 2×121301200323100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301200323101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13471480 + ... + 20593279.

It is an arithmetic number, because the mean of its divisors is an integer number (4178973917440).

Almost surely, 2^{121301200323100} is an apocalyptic number.

121301200323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301200323100 is an abundant number, since it is smaller than the sum of its proper divisors (179584921732580).

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

121301200323100 is a wasteful number, since it uses less digits than its factorization.

121301200323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34069867 (or 34069860 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121301200323100 its reverse (1323002103121), we get a palindrome (122624202426221).

The spelling of 121301200323100 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred million, three hundred twenty-three thousand, one hundred".