120120511 has 12 divisors (see below), whose sum is σ = 140371392. Its totient is φ = 102489408.

The previous prime is 120120509. The next prime is 120120563. The reversal of 120120511 is 115021021.

It is not a de Polignac number, because 120120511 - 2¹ = 120120509 is a prime.

It is a super-2 number, since 2×120120511² = 28857874325802242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120120491 and 120120500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120911) 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, 5431 + ... + 16423.

It is an arithmetic number, because the mean of its divisors is an integer number (11697616).

Almost surely, 2^120120511 is an apocalyptic number.

120120511 is a deficient number, since it is larger than the sum of its proper divisors (20250881).

120120511 is a wasteful number, since it uses less digits than its factorization.

120120511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11230 (or 11223 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 120120511 is about 10959.9503192305. The cubic root of 120120511 is about 493.4074738929.

Adding to 120120511 its reverse (115021021), we get a palindrome (235141532).

It can be divided in two parts, 1201205 and 11, that added together give a square (1201216 = 1096²).

The spelling of 120120511 in words is "one hundred twenty million, one hundred twenty thousand, five hundred eleven".