1230451043 has 4 divisors (see below), whose sum is σ = 1230541008. Its totient is φ = 1230361080.

The previous prime is 1230451031. The next prime is 1230451049. The reversal of 1230451043 is 3401540321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3401540321 = 1459 ⋅2331419.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230451043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230451049) 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, 19748 + ... + 53393.

It is an arithmetic number, because the mean of its divisors is an integer number (307635252).

Almost surely, 2^1230451043 is an apocalyptic number.

1230451043 is a deficient number, since it is larger than the sum of its proper divisors (89965).

1230451043 is an equidigital number, since it uses as much as digits as its factorization.

1230451043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89964.

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

The square root of 1230451043 is about 35077.7856057078. The cubic root of 1230451043 is about 1071.5722201041.

Adding to 1230451043 its reverse (3401540321), we get a palindrome (4631991364).

The spelling of 1230451043 in words is "one billion, two hundred thirty million, four hundred fifty-one thousand, forty-three".