121323134334432 has 24 divisors (see below), whose sum is σ = 318473227628136. Its totient is φ = 40441044778112.

The previous prime is 121323134334421. The next prime is 121323134334539. The reversal of 121323134334432 is 234433431323121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631891324563 + ... + 631891324754.

It is an arithmetic number, because the mean of its divisors is an integer number (13269717817839).

Almost surely, 2^{121323134334432} is an apocalyptic number.

121323134334432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121323134334432 is an abundant number, since it is smaller than the sum of its proper divisors (197150093293704).

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

121323134334432 is a wasteful number, since it uses less digits than its factorization.

121323134334432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263782649330 (or 1263782649322 counting only the distinct ones).

The product of its digits is 373248, while the sum is 39.

Adding to 121323134334432 its reverse (234433431323121), we get a palindrome (355756565657553).

The spelling of 121323134334432 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, one hundred thirty-four million, three hundred thirty-four thousand, four hundred thirty-two".