120533034151521 has 12 divisors (see below), whose sum is σ = 174570036360148. Its totient is φ = 80139926189664.

The previous prime is 120533034151489. The next prime is 120533034151573. The reversal of 120533034151521 is 125151430335021.

It is a happy number.

120533034151521 is a `hidden beast` number, since 1 + 2 + 0 + 53 + 3 + 0 + 34 + 1 + 51 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53317451534400 + 67215582617121 = 7301880^2 + 8198511^2 .

It is not a de Polignac number, because 120533034151521 - 2⁵ = 120533034151489 is a prime.

It is a super-2 number, since 2×120533034151521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120533034151591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17952489070 + ... + 17952495783.

Almost surely, 2^{120533034151521} is an apocalyptic number.

It is an amenable number.

120533034151521 is a deficient number, since it is larger than the sum of its proper divisors (54037002208627).

120533034151521 is a wasteful number, since it uses less digits than its factorization.

120533034151521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35904985232 (or 35904985229 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 120533034151521 its reverse (125151430335021), we get a palindrome (245684464486542).

The spelling of 120533034151521 in words is "one hundred twenty trillion, five hundred thirty-three billion, thirty-four million, one hundred fifty-one thousand, five hundred twenty-one".