120113506 has 4 divisors (see below), whose sum is σ = 180170262. Its totient is φ = 60056752.

The previous prime is 120113471. The next prime is 120113537. The reversal of 120113506 is 605311021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112042225 + 8071281 = 10585^2 + 2841^2 .

It is a super-2 number, since 2×120113506² = 28854508647224072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30028375 + ... + 30028378.

Almost surely, 2^120113506 is an apocalyptic number.

120113506 is a deficient number, since it is larger than the sum of its proper divisors (60056756).

120113506 is an equidigital number, since it uses as much as digits as its factorization.

120113506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60056755.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 120113506 is about 10959.6307419548. The cubic root of 120113506 is about 493.3978824515.

Adding to 120113506 its reverse (605311021), we get a palindrome (725424527).

The spelling of 120113506 in words is "one hundred twenty million, one hundred thirteen thousand, five hundred six".