1214121431423 has 4 divisors (see below), whose sum is σ = 1222856118120. Its totient is φ = 1205386744728.

The previous prime is 1214121431389. The next prime is 1214121431507. The reversal of 1214121431423 is 3241341214121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1214121431423 - 2²⁰ = 1214120382847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214121431123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367343140 + ... + 4367343417.

It is an arithmetic number, because the mean of its divisors is an integer number (305714029530).

Almost surely, 2^{1214121431423} is an apocalyptic number.

1214121431423 is a deficient number, since it is larger than the sum of its proper divisors (8734686697).

1214121431423 is an equidigital number, since it uses as much as digits as its factorization.

1214121431423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734686696.

The product of its digits is 4608, while the sum is 29.

Adding to 1214121431423 its reverse (3241341214121), we get a palindrome (4455462645544).

The spelling of 1214121431423 in words is "one trillion, two hundred fourteen billion, one hundred twenty-one million, four hundred thirty-one thousand, four hundred twenty-three".