121101313021 has 8 divisors (see below), whose sum is σ = 131197739904. Its totient is φ = 111116449200.

The previous prime is 121101312989. The next prime is 121101313043. The reversal of 121101313021 is 120313101121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121101313021 - 2⁵ = 121101312989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121101312986 and 121101313004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101319021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27888505 + ... + 27892846.

It is an arithmetic number, because the mean of its divisors is an integer number (16399717488).

Almost surely, 2^121101313021 is an apocalyptic number.

It is an amenable number.

121101313021 is a deficient number, since it is larger than the sum of its proper divisors (10096426883).

121101313021 is a wasteful number, since it uses less digits than its factorization.

121101313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55781531.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121101313021 its reverse (120313101121), we get a palindrome (241414414142).

The spelling of 121101313021 in words is "one hundred twenty-one billion, one hundred one million, three hundred thirteen thousand, twenty-one".