121323332213320 has 16 divisors (see below), whose sum is σ = 272977497480060. Its totient is φ = 48529332885312.

The previous prime is 121323332213309. The next prime is 121323332213327. The reversal of 121323332213320 is 23312233323121.

It can be written as a sum of positive squares in 2 ways, for example, as 100348342829604 + 20974989383716 = 10017402^2 + 4579846^2 .

It is a super-2 number, since 2×121323332213320² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121323332213327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516541652627 + ... + 1516541652706.

Almost surely, 2^{121323332213320} is an apocalyptic number.

121323332213320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121323332213320 is an abundant number, since it is smaller than the sum of its proper divisors (151654165266740).

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

121323332213320 is a wasteful number, since it uses less digits than its factorization.

121323332213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033083305344 (or 3033083305340 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 121323332213320 its reverse (23312233323121), we get a palindrome (144635565536441).

The spelling of 121323332213320 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, three hundred thirty-two million, two hundred thirteen thousand, three hundred twenty".