121200321230 has 16 divisors (see below), whose sum is σ = 218176174944. Its totient is φ = 48476662560.

The previous prime is 121200321217. The next prime is 121200321259. The reversal of 121200321230 is 32123002121.

It is a junction number, because it is equal to n+sod(n) for n = 121200321199 and 121200321208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283922 + ... + 568341.

It is an arithmetic number, because the mean of its divisors is an integer number (13636010934).

Almost surely, 2^121200321230 is an apocalyptic number.

121200321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200321230 is a deficient number, since it is larger than the sum of its proper divisors (96975853714).

121200321230 is a wasteful number, since it uses less digits than its factorization.

121200321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866491.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121200321230 its reverse (32123002121), we get a palindrome (153323323351).

The spelling of 121200321230 in words is "one hundred twenty-one billion, two hundred million, three hundred twenty-one thousand, two hundred thirty".