120346505643021 has 32 divisors (see below), whose sum is σ = 183836386476288. Its totient is φ = 68600374018560.

The previous prime is 120346505643017. The next prime is 120346505643103.

120346505643021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 120346505643021 - 2² = 120346505643017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120346505644021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15362481 + ... + 21833433.

It is an arithmetic number, because the mean of its divisors is an integer number (5744887077384).

Almost surely, 2^{120346505643021} is an apocalyptic number.

It is an amenable number.

120346505643021 is a deficient number, since it is larger than the sum of its proper divisors (63489880833267).

120346505643021 is a wasteful number, since it uses less digits than its factorization.

120346505643021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473141.

The product of its (nonzero) digits is 518400, while the sum is 42.

It can be divided in two parts, 12034650 and 5643021, that added together give a palindrome (17677671).

The spelling of 120346505643021 in words is "one hundred twenty trillion, three hundred forty-six billion, five hundred five million, six hundred forty-three thousand, twenty-one".