120231220143131 has 4 divisors (see below), whose sum is σ = 121027453389264. Its totient is φ = 119434986897000.

The previous prime is 120231220143101. The next prime is 120231220143149. The reversal of 120231220143131 is 131341022132021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120231220143131 - 2³⁴ = 120214040273947 is a prime.

It is a super-2 number, since 2×120231220143131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120231220143131.

It is not an unprimeable number, because it can be changed into a prime (120231220143101) 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 3 ways as a sum of consecutive naturals, for example, 398116622840 + ... + 398116623141.

It is an arithmetic number, because the mean of its divisors is an integer number (30256863347316).

Almost surely, 2^{120231220143131} is an apocalyptic number.

120231220143131 is a deficient number, since it is larger than the sum of its proper divisors (796233246133).

120231220143131 is an equidigital number, since it uses as much as digits as its factorization.

120231220143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796233246132.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 120231220143131 its reverse (131341022132021), we get a palindrome (251572242275152).

The spelling of 120231220143131 in words is "one hundred twenty trillion, two hundred thirty-one billion, two hundred twenty million, one hundred forty-three thousand, one hundred thirty-one".