121230331012 has 18 divisors (see below), whose sum is σ = 246790317102. Its totient is φ = 51955856064.

The previous prime is 121230330973. The next prime is 121230331043. The reversal of 121230331012 is 210133032121.

It can be written as a sum of positive squares in only one way, i.e., 121170825216 + 59505796 = 348096^2 + 7714^2 .

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, 309260853 + ... + 309261244.

Almost surely, 2^121230331012 is an apocalyptic number.

It is an amenable number.

121230331012 is an abundant number, since it is smaller than the sum of its proper divisors (125559986090).

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

121230331012 is a wasteful number, since it uses less digits than its factorization.

121230331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618522115 (or 618522106 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121230331012 its reverse (210133032121), we get a palindrome (331363363133).

The spelling of 121230331012 in words is "one hundred twenty-one billion, two hundred thirty million, three hundred thirty-one thousand, twelve".