120811453560 has 256 divisors, whose sum is σ = 460510617600. Its totient is φ = 27597459456.

The previous prime is 120811453559. The next prime is 120811453561. The reversal of 120811453560 is 65354118021.

120811453560 is a `hidden beast` number, since 1 + 2 + 0 + 8 + 114 + 535 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (120811453559) and next prime (120811453561).

It is a super-2 number, since 2×120811453560² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120811453561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16197352 + ... + 16204808.

It is an arithmetic number, because the mean of its divisors is an integer number (1798869600).

Almost surely, 2^120811453560 is an apocalyptic number.

120811453560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120811453560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230255308800).

120811453560 is an abundant number, since it is smaller than the sum of its proper divisors (339699164040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120811453560 is a wasteful number, since it uses less digits than its factorization.

120811453560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627 (or 9617 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

It can be divided in two parts, 12081 and 1453560, that added together give a palindrome (1465641).

The spelling of 120811453560 in words is "one hundred twenty billion, eight hundred eleven million, four hundred fifty-three thousand, five hundred sixty".