121023103208 has 64 divisors (see below), whose sum is σ = 261793728000. Its totient is φ = 51377264640.

The previous prime is 121023103177. The next prime is 121023103259. The reversal of 121023103208 is 802301320121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3042488 + ... + 3082008.

It is an arithmetic number, because the mean of its divisors is an integer number (4090527000).

Almost surely, 2^121023103208 is an apocalyptic number.

It is an amenable number.

121023103208 is an abundant number, since it is smaller than the sum of its proper divisors (140770624792).

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

121023103208 is a wasteful number, since it uses less digits than its factorization.

121023103208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40050 (or 40046 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121023103208 its reverse (802301320121), we get a palindrome (923324423329).

The spelling of 121023103208 in words is "one hundred twenty-one billion, twenty-three million, one hundred three thousand, two hundred eight".