1020121130331 has 24 divisors (see below), whose sum is σ = 1519285749696. Its totient is φ = 659194164720.

The previous prime is 1020121130317. The next prime is 1020121130383. The reversal of 1020121130331 is 1330311210201.

1020121130331 is a `hidden beast` number, since 1 + 0 + 201 + 2 + 1 + 130 + 331 = 666.

It is not a de Polignac number, because 1020121130331 - 2¹⁵ = 1020121097563 is a prime.

It is a super-2 number, since 2×1020121130331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020121130131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10010265 + ... + 10111658.

It is an arithmetic number, because the mean of its divisors is an integer number (63303572904).

Almost surely, 2^{1020121130331} is an apocalyptic number.

1020121130331 is a deficient number, since it is larger than the sum of its proper divisors (499164619365).

1020121130331 is a wasteful number, since it uses less digits than its factorization.

1020121130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122103 (or 20122100 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1020121130331 its reverse (1330311210201), we get a palindrome (2350432340532).

The spelling of 1020121130331 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred thirty thousand, three hundred thirty-one".