120340253 has 4 divisors (see below), whose sum is σ = 131280288. Its totient is φ = 109400220.

The previous prime is 120340219. The next prime is 120340277. The reversal of 120340253 is 352043021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120340253 - 2¹⁸ = 120078109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120340553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5470001 + ... + 5470022.

It is an arithmetic number, because the mean of its divisors is an integer number (32820072).

Almost surely, 2^120340253 is an apocalyptic number.

It is an amenable number.

120340253 is a deficient number, since it is larger than the sum of its proper divisors (10940035).

120340253 is a wasteful number, since it uses less digits than its factorization.

120340253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940034.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120340253 is about 10969.9705104435. The cubic root of 120340253 is about 493.7081616421.

Adding to 120340253 its reverse (352043021), we get a palindrome (472383274).

The spelling of 120340253 in words is "one hundred twenty million, three hundred forty thousand, two hundred fifty-three".