121031321320001 has 4 divisors (see below), whose sum is σ = 121033180231104. Its totient is φ = 121029462408900.

The previous prime is 121031321319977. The next prime is 121031321320073. The reversal of 121031321320001 is 100023123130121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121031321320001 - 2³⁴ = 121014141450817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121031321320201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929357885 + ... + 929488106.

It is an arithmetic number, because the mean of its divisors is an integer number (30258295057776).

Almost surely, 2^{121031321320001} is an apocalyptic number.

It is an amenable number.

121031321320001 is a deficient number, since it is larger than the sum of its proper divisors (1858911103).

121031321320001 is an equidigital number, since it uses as much as digits as its factorization.

121031321320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858911102.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121031321320001 its reverse (100023123130121), we get a palindrome (221054444450122).

The spelling of 121031321320001 in words is "one hundred twenty-one trillion, thirty-one billion, three hundred twenty-one million, three hundred twenty thousand, one".