1212430043 has 12 divisors (see below), whose sum is σ = 1333528224. Its totient is φ = 1101500400.

The previous prime is 1212430013. The next prime is 1212430061. The reversal of 1212430043 is 3400342121.

It is not a de Polignac number, because 1212430043 - 2⁶ = 1212429979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212429997 and 1212430024.

It is not an unprimeable number, because it can be changed into a prime (1212430003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315230 + ... + 319052.

It is an arithmetic number, because the mean of its divisors is an integer number (111127352).

Almost surely, 2^1212430043 is an apocalyptic number.

1212430043 is a deficient number, since it is larger than the sum of its proper divisors (121098181).

1212430043 is a wasteful number, since it uses less digits than its factorization.

1212430043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1212430043 is about 34819.9661544925. The cubic root of 1212430043 is about 1066.3151094160.

Adding to 1212430043 its reverse (3400342121), we get a palindrome (4612772164).

The spelling of 1212430043 in words is "one billion, two hundred twelve million, four hundred thirty thousand, forty-three".