121332213123 has 24 divisors (see below), whose sum is σ = 178722959184. Its totient is φ = 73161359040.

The previous prime is 121332213113. The next prime is 121332213131. The reversal of 121332213123 is 321312233121.

It is not a de Polignac number, because 121332213123 - 2⁶ = 121332213059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121332213093 and 121332213102.

It is not an unprimeable number, because it can be changed into a prime (121332213113) 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, 776836 + ... + 919857.

It is an arithmetic number, because the mean of its divisors is an integer number (7446789966).

Almost surely, 2^121332213123 is an apocalyptic number.

121332213123 is a deficient number, since it is larger than the sum of its proper divisors (57390746061).

121332213123 is a wasteful number, since it uses less digits than its factorization.

121332213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696915 (or 1696904 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 121332213123 its reverse (321312233121), we get a palindrome (442644446244).

The spelling of 121332213123 in words is "one hundred twenty-one billion, three hundred thirty-two million, two hundred thirteen thousand, one hundred twenty-three".