1000231130121 has 16 divisors (see below), whose sum is σ = 1335402215424. Its totient is φ = 665940581264.

The previous prime is 1000231130113. The next prime is 1000231130147. The reversal of 1000231130121 is 1210311320001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1000231130121 - 2³ = 1000231130113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000231130121.

It is not an unprimeable number, because it can be changed into a prime (1000231130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31063396 + ... + 31095578.

It is an arithmetic number, because the mean of its divisors is an integer number (83462638464).

Almost surely, 2^{1000231130121} is an apocalyptic number.

It is an amenable number.

1000231130121 is a deficient number, since it is larger than the sum of its proper divisors (335171085303).

1000231130121 is a wasteful number, since it uses less digits than its factorization.

1000231130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45540.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1000231130121 its reverse (1210311320001), we get a palindrome (2210542450122).

The spelling of 1000231130121 in words is "one trillion, two hundred thirty-one million, one hundred thirty thousand, one hundred twenty-one".