1212203463 has 16 divisors (see below), whose sum is σ = 1660181376. Its totient is φ = 786471840.

The previous prime is 1212203441. The next prime is 1212203501. The reversal of 1212203463 is 3643022121.

It is not a de Polignac number, because 1212203463 - 2³⁰ = 138461639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212203423) 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, 19648 + ... + 53013.

It is an arithmetic number, because the mean of its divisors is an integer number (103761336).

Almost surely, 2^1212203463 is an apocalyptic number.

1212203463 is a deficient number, since it is larger than the sum of its proper divisors (447977913).

1212203463 is an equidigital number, since it uses as much as digits as its factorization.

1212203463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72814.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1212203463 is about 34816.7124094163. The cubic root of 1212203463 is about 1066.2486806405.

Adding to 1212203463 its reverse (3643022121), we get a palindrome (4855225584).

The spelling of 1212203463 in words is "one billion, two hundred twelve million, two hundred three thousand, four hundred sixty-three".