1223040351 has 16 divisors (see below), whose sum is σ = 1757325024. Its totient is φ = 752141184.

The previous prime is 1223040337. The next prime is 1223040383. The reversal of 1223040351 is 1530403221.

It is not a de Polignac number, because 1223040351 - 2⁵ = 1223040319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223040151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54265 + ... + 73421.

It is an arithmetic number, because the mean of its divisors is an integer number (109832814).

Almost surely, 2^1223040351 is an apocalyptic number.

1223040351 is a deficient number, since it is larger than the sum of its proper divisors (534284673).

1223040351 is a wasteful number, since it uses less digits than its factorization.

1223040351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20810.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1223040351 is about 34971.9938093326. The cubic root of 1223040351 is about 1069.4166182565.

Adding to 1223040351 its reverse (1530403221), we get a palindrome (2753443572).

The spelling of 1223040351 in words is "one billion, two hundred twenty-three million, forty thousand, three hundred fifty-one".