1212411423 has 16 divisors (see below), whose sum is σ = 1713070080. Its totient is φ = 760093056.

The previous prime is 1212411383. The next prime is 1212411427. The reversal of 1212411423 is 3241142121.

It is not a de Polignac number, because 1212411423 - 2¹⁴ = 1212395039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212411423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212411427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55936 + ... + 74522.

It is an arithmetic number, because the mean of its divisors is an integer number (107066880).

Almost surely, 2^1212411423 is an apocalyptic number.

1212411423 is a deficient number, since it is larger than the sum of its proper divisors (500658657).

1212411423 is a wasteful number, since it uses less digits than its factorization.

1212411423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886.

The product of its digits is 384, while the sum is 21.

The square root of 1212411423 is about 34819.6987781342. The cubic root of 1212411423 is about 1066.3096507124.

Adding to 1212411423 its reverse (3241142121), we get a palindrome (4453553544).

The spelling of 1212411423 in words is "one billion, two hundred twelve million, four hundred eleven thousand, four hundred twenty-three".