121230203232 has 48 divisors (see below), whose sum is σ = 318256413552. Its totient is φ = 40406622720.

The previous prime is 121230203231. The next prime is 121230203233. The reversal of 121230203232 is 232302032121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121230203231) and next prime (121230203233).

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 121230203199 and 121230203208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230203231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238982 + ... + 1333242.

It is an arithmetic number, because the mean of its divisors is an integer number (6630341949).

Almost surely, 2^121230203232 is an apocalyptic number.

121230203232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121230203232 is an abundant number, since it is smaller than the sum of its proper divisors (197026210320).

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

121230203232 is a wasteful number, since it uses less digits than its factorization.

121230203232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107671 (or 107663 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121230203232 its reverse (232302032121), we get a palindrome (353532235353).

The spelling of 121230203232 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred three thousand, two hundred thirty-two".