121313321332 has 18 divisors (see below), whose sum is σ = 246959261682. Its totient is φ = 51991423344.

The previous prime is 121313321251. The next prime is 121313321347. The reversal of 121313321332 is 233123313121.

It can be written as a sum of positive squares in only one way, i.e., 78878969316 + 42434352016 = 280854^2 + 205996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121313321297 and 121313321306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309472563 + ... + 309472954.

Almost surely, 2^121313321332 is an apocalyptic number.

It is an amenable number.

121313321332 is an abundant number, since it is smaller than the sum of its proper divisors (125645940350).

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

121313321332 is a wasteful number, since it uses less digits than its factorization.

121313321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618945535 (or 618945526 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 121313321332 its reverse (233123313121), we get a palindrome (354436634453).

The spelling of 121313321332 in words is "one hundred twenty-one billion, three hundred thirteen million, three hundred twenty-one thousand, three hundred thirty-two".