1212433430420 has 24 divisors (see below), whose sum is σ = 2628242792448. Its totient is φ = 469329069600.

The previous prime is 1212433430393. The next prime is 1212433430423. The reversal of 1212433430420 is 240343342121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212433430423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977768276 + ... + 977769515.

It is an arithmetic number, because the mean of its divisors is an integer number (109510116352).

Almost surely, 2^{1212433430420} is an apocalyptic number.

1212433430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212433430420 is an abundant number, since it is smaller than the sum of its proper divisors (1415809362028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212433430420 is a wasteful number, since it uses less digits than its factorization.

1212433430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955537831 (or 1955537829 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1212433430420 its reverse (240343342121), we get a palindrome (1452776772541).

The spelling of 1212433430420 in words is "one trillion, two hundred twelve billion, four hundred thirty-three million, four hundred thirty thousand, four hundred twenty".