120511512 has 96 divisors (see below), whose sum is σ = 362232000. Its totient is φ = 35885760.

The previous prime is 120511511. The next prime is 120511519. The reversal of 120511512 is 215115021.

It is a super-2 number, since 2×120511512² = 29046049049052288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120511511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45439 + ... + 48017.

It is an arithmetic number, because the mean of its divisors is an integer number (3773250).

Almost surely, 2^120511512 is an apocalyptic number.

120511512 is a gapful number since it is divisible by the number (12) 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 120511512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181116000).

120511512 is an abundant number, since it is smaller than the sum of its proper divisors (241720488).

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

120511512 is a wasteful number, since it uses less digits than its factorization.

120511512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 120511512 is about 10977.7735447585. The cubic root of 120511512 is about 493.9422531350.

Adding to 120511512 its reverse (215115021), we get a palindrome (335626533).

The spelling of 120511512 in words is "one hundred twenty million, five hundred eleven thousand, five hundred twelve".