121321210111013 has 8 divisors (see below), whose sum is σ = 132532461122880. Its totient is φ = 110140300781280.

The previous prime is 121321210110973. The next prime is 121321210111081. The reversal of 121321210111013 is 310111012123121.

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

It is not a de Polignac number, because 121321210111013 - 2¹² = 121321210106917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321210131013) 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, 7585412168 + ... + 7585428161.

It is an arithmetic number, because the mean of its divisors is an integer number (16566557640360).

Almost surely, 2^{121321210111013} is an apocalyptic number.

It is an amenable number.

121321210111013 is a deficient number, since it is larger than the sum of its proper divisors (11211251011867).

121321210111013 is a wasteful number, since it uses less digits than its factorization.

121321210111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170841067.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 121321210111013 its reverse (310111012123121), we get a palindrome (431432222234134).

The spelling of 121321210111013 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred ten million, one hundred eleven thousand, thirteen".