130121021223 has 72 divisors (see below), whose sum is σ = 204478346592. Its totient is φ = 79458914304.

The previous prime is 130121021203. The next prime is 130121021227. The reversal of 130121021223 is 322120121031.

It is not a de Polignac number, because 130121021223 - 2¹² = 130121017127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130121021196 and 130121021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130121021227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99861990 + ... + 99863292.

It is an arithmetic number, because the mean of its divisors is an integer number (2839977036).

Almost surely, 2^130121021223 is an apocalyptic number.

130121021223 is a deficient number, since it is larger than the sum of its proper divisors (74357325369).

130121021223 is a wasteful number, since it uses less digits than its factorization.

130121021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 130121021223 its reverse (322120121031), we get a palindrome (452241142254).

The spelling of 130121021223 in words is "one hundred thirty billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-three".