20312120223130 has 64 divisors (see below), whose sum is σ = 37880568760320. Its totient is φ = 7836953495616.

The previous prime is 20312120223107. The next prime is 20312120223133. The reversal of 20312120223130 is 3132202121302.

It is not an unprimeable number, because it can be changed into a prime (20312120223133) 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 31 ways as a sum of consecutive naturals, for example, 15261369 + ... + 16538851.

It is an arithmetic number, because the mean of its divisors is an integer number (591883886880).

Almost surely, 2^{20312120223130} is an apocalyptic number.

20312120223130 is a deficient number, since it is larger than the sum of its proper divisors (17568448537190).

20312120223130 is a wasteful number, since it uses less digits than its factorization.

20312120223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277995.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20312120223130 its reverse (3132202121302), we get a palindrome (23444322344432).

The spelling of 20312120223130 in words is "twenty trillion, three hundred twelve billion, one hundred twenty million, two hundred twenty-three thousand, one hundred thirty".