120320121131 has 4 divisors (see below), whose sum is σ = 137508709872. Its totient is φ = 103131532392.

The previous prime is 120320121127. The next prime is 120320121137. The reversal of 120320121131 is 131121023021.

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

It is not a de Polignac number, because 120320121131 - 2² = 120320121127 is a prime.

It is a super-2 number, since 2×120320121131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120320121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8594294360 + ... + 8594294373.

It is an arithmetic number, because the mean of its divisors is an integer number (34377177468).

Almost surely, 2^120320121131 is an apocalyptic number.

120320121131 is a deficient number, since it is larger than the sum of its proper divisors (17188588741).

120320121131 is an equidigital number, since it uses as much as digits as its factorization.

120320121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17188588740.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120320121131 its reverse (131121023021), we get a palindrome (251441144152).

The spelling of 120320121131 in words is "one hundred twenty billion, three hundred twenty million, one hundred twenty-one thousand, one hundred thirty-one".