120023501657 has 8 divisors (see below), whose sum is σ = 126420370560. Its totient is φ = 113634617040.

The previous prime is 120023501641. The next prime is 120023501659. The reversal of 120023501657 is 756105320021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120023501657 - 2⁴ = 120023501641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120023501659) 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 7 ways as a sum of consecutive naturals, for example, 1965194 + ... + 2025347.

It is an arithmetic number, because the mean of its divisors is an integer number (15802546320).

Almost surely, 2^120023501657 is an apocalyptic number.

It is an amenable number.

120023501657 is a deficient number, since it is larger than the sum of its proper divisors (6396868903).

120023501657 is a wasteful number, since it uses less digits than its factorization.

120023501657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992143.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 120023501657 its reverse (756105320021), we get a palindrome (876128821678).

The spelling of 120023501657 in words is "one hundred twenty billion, twenty-three million, five hundred one thousand, six hundred fifty-seven".