1234400351 has 2 divisors, whose sum is σ = 1234400352. Its totient is φ = 1234400350.

The previous prime is 1234400329. The next prime is 1234400353. The reversal of 1234400351 is 1530044321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1234400351 - 2¹⁸ = 1234138207 is a prime.

Together with 1234400353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234400353) 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 as a sum of consecutive naturals, namely, 617200175 + 617200176.

It is an arithmetic number, because the mean of its divisors is an integer number (617200176).

Almost surely, 2^1234400351 is an apocalyptic number.

1234400351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234400351 is an equidigital number, since it uses as much as digits as its factorization.

1234400351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1234400351 is about 35134.0340837769. The cubic root of 1234400351 is about 1072.7174503077.

Adding to 1234400351 its reverse (1530044321), we get a palindrome (2764444672).

The spelling of 1234400351 in words is "one billion, two hundred thirty-four million, four hundred thousand, three hundred fifty-one".