103121020121331 has 8 divisors (see below), whose sum is σ = 144731256310720. Its totient is φ = 65129065339752.

The previous prime is 103121020121323. The next prime is 103121020121381. The reversal of 103121020121331 is 133121020121301.

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

It is not a de Polignac number, because 103121020121331 - 2³ = 103121020121323 is a prime.

It is a super-2 number, since 2×103121020121331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103121020121298 and 103121020121307.

It is not an unprimeable number, because it can be changed into a prime (103121020121381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904570351885 + ... + 904570351998.

It is an arithmetic number, because the mean of its divisors is an integer number (18091407038840).

Almost surely, 2^{103121020121331} is an apocalyptic number.

103121020121331 is a deficient number, since it is larger than the sum of its proper divisors (41610236189389).

103121020121331 is a wasteful number, since it uses less digits than its factorization.

103121020121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809140703905.

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

Adding to 103121020121331 its reverse (133121020121301), we get a palindrome (236242040242632).

The spelling of 103121020121331 in words is "one hundred three trillion, one hundred twenty-one billion, twenty million, one hundred twenty-one thousand, three hundred thirty-one".