121321010104 has 32 divisors (see below), whose sum is σ = 260010384480. Its totient is φ = 51987360384.

The previous prime is 121321010087. The next prime is 121321010117. The reversal of 121321010104 is 401010123121.

It is a congruent number.

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, 255594 + ... + 554950.

It is an arithmetic number, because the mean of its divisors is an integer number (8125324515).

Almost surely, 2^121321010104 is an apocalyptic number.

121321010104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121321010104 is an abundant number, since it is smaller than the sum of its proper divisors (138689374376).

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

121321010104 is a wasteful number, since it uses less digits than its factorization.

121321010104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306607 (or 306603 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121321010104 its reverse (401010123121), we get a palindrome (522331133225).

The spelling of 121321010104 in words is "one hundred twenty-one billion, three hundred twenty-one million, ten thousand, one hundred four".