1212332043 has 16 divisors (see below), whose sum is σ = 1753498656. Its totient is φ = 740601600.

The previous prime is 1212332021. The next prime is 1212332057. The reversal of 1212332043 is 3402332121.

It is not a de Polignac number, because 1212332043 - 2²² = 1208137739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212332003) 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, 108108 + ... + 118793.

It is an arithmetic number, because the mean of its divisors is an integer number (109593666).

Almost surely, 2^1212332043 is an apocalyptic number.

1212332043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1212332043 is a deficient number, since it is larger than the sum of its proper divisors (541166613).

1212332043 is a wasteful number, since it uses less digits than its factorization.

1212332043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227054.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1212332043 is about 34818.5588874669. The cubic root of 1212332043 is about 1066.2863787697.

Adding to 1212332043 its reverse (3402332121), we get a palindrome (4614664164).

The spelling of 1212332043 in words is "one billion, two hundred twelve million, three hundred thirty-two thousand, forty-three".