120520115122031 has 4 divisors (see below), whose sum is σ = 120521977680600. Its totient is φ = 120518252563464.

The previous prime is 120520115122003. The next prime is 120520115122073. The reversal of 120520115122031 is 130221511025021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120520115122031 is a prime.

It is a super-2 number, since 2×120520115122031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120520115122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931182221 + ... + 931311638.

It is an arithmetic number, because the mean of its divisors is an integer number (30130494420150).

Almost surely, 2^{120520115122031} is an apocalyptic number.

120520115122031 is a deficient number, since it is larger than the sum of its proper divisors (1862558569).

120520115122031 is an equidigital number, since it uses as much as digits as its factorization.

120520115122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862558568.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 120520115122031 its reverse (130221511025021), we get a palindrome (250741626147052).

The spelling of 120520115122031 in words is "one hundred twenty trillion, five hundred twenty billion, one hundred fifteen million, one hundred twenty-two thousand, thirty-one".