120151101521 has 8 divisors (see below), whose sum is σ = 131099685888. Its totient is φ = 109206810000.

The previous prime is 120151101503. The next prime is 120151101523. The reversal of 120151101521 is 125101151021.

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 120151101521 - 2⁶ = 120151101457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120151101493 and 120151101502.

It is not an unprimeable number, because it can be changed into a prime (120151101523) 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 7 ways as a sum of consecutive naturals, for example, 1014545 + ... + 1126766.

It is an arithmetic number, because the mean of its divisors is an integer number (16387460736).

Almost surely, 2^120151101521 is an apocalyptic number.

120151101521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120151101521 is a deficient number, since it is larger than the sum of its proper divisors (10948584367).

120151101521 is a wasteful number, since it uses less digits than its factorization.

120151101521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146423.

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 120151101521 its reverse (125101151021), we get a palindrome (245252252542).

The spelling of 120151101521 in words is "one hundred twenty billion, one hundred fifty-one million, one hundred one thousand, five hundred twenty-one".