121320203012 has 24 divisors (see below), whose sum is σ = 214499511072. Its totient is φ = 60037718400.

The previous prime is 121320203009. The next prime is 121320203021. The reversal of 121320203012 is 210302023121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228914 + ... + 543177.

It is an arithmetic number, because the mean of its divisors is an integer number (8937479628).

Almost surely, 2^121320203012 is an apocalyptic number.

It is an amenable number.

121320203012 is a deficient number, since it is larger than the sum of its proper divisors (93179308060).

121320203012 is a wasteful number, since it uses less digits than its factorization.

121320203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772499 (or 772497 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121320203012 its reverse (210302023121), we get a palindrome (331622226133).

The spelling of 121320203012 in words is "one hundred twenty-one billion, three hundred twenty million, two hundred three thousand, twelve".