1212331043 has 32 divisors (see below), whose sum is σ = 1642414080. Its totient is φ = 866052000.

The previous prime is 1212331037. The next prime is 1212331067. The reversal of 1212331043 is 3401332121.

It is not a de Polignac number, because 1212331043 - 2⁸ = 1212330787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212331093) 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 31 ways as a sum of consecutive naturals, for example, 31988 + ... + 58718.

It is an arithmetic number, because the mean of its divisors is an integer number (51325440).

Almost surely, 2^1212331043 is an apocalyptic number.

1212331043 is a deficient number, since it is larger than the sum of its proper divisors (430083037).

1212331043 is a wasteful number, since it uses less digits than its factorization.

1212331043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26799.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1212331043 is about 34818.5445273061. The cubic root of 1212331043 is about 1066.2860855918.

Adding to 1212331043 its reverse (3401332121), we get a palindrome (4613663164).

The spelling of 1212331043 in words is "one billion, two hundred twelve million, three hundred thirty-one thousand, forty-three".