2251311430 has 32 divisors (see below), whose sum is σ = 4095611424. Its totient is φ = 890942976.

The previous prime is 2251311379. The next prime is 2251311431. The reversal of 2251311430 is 341131522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251311431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770332 + ... + 773248.

It is an arithmetic number, because the mean of its divisors is an integer number (127987857).

Almost surely, 2^2251311430 is an apocalyptic number.

2251311430 is a deficient number, since it is larger than the sum of its proper divisors (1844299994).

2251311430 is a wasteful number, since it uses less digits than its factorization.

2251311430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2251311430 is about 47447.9865747747. The cubic root of 2251311430 is about 1310.6252342421.

Adding to 2251311430 its reverse (341131522), we get a palindrome (2592442952).

The spelling of 2251311430 in words is "two billion, two hundred fifty-one million, three hundred eleven thousand, four hundred thirty".