121003012231311 has 8 divisors (see below), whose sum is σ = 184385542447744. Its totient is φ = 69144578417880.

The previous prime is 121003012231303. The next prime is 121003012231369. The reversal of 121003012231311 is 113132210300121.

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

It is not a de Polignac number, because 121003012231311 - 2³ = 121003012231303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5762048201491 = 121003012231311 / (1 + 2 + 1 + 0 + 0 + 3 + 0 + 1 + 2 + 2 + 3 + 1 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003012231711) 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, 2881024100725 + ... + 2881024100766.

It is an arithmetic number, because the mean of its divisors is an integer number (23048192805968).

Almost surely, 2^{121003012231311} is an apocalyptic number.

121003012231311 is a deficient number, since it is larger than the sum of its proper divisors (63382530216433).

121003012231311 is an equidigital number, since it uses as much as digits as its factorization.

121003012231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762048201501.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121003012231311 its reverse (113132210300121), we get a palindrome (234135222531432).

The spelling of 121003012231311 in words is "one hundred twenty-one trillion, three billion, twelve million, two hundred thirty-one thousand, three hundred eleven".