1431123321422 has 4 divisors (see below), whose sum is σ = 2146684982136. Its totient is φ = 715561660710.

The previous prime is 1431123321389. The next prime is 1431123321449. The reversal of 1431123321422 is 2241233211341.

It is a happy number.

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

It is a super-2 number, since 2×1431123321422² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357780830354 + ... + 357780830357.

It is an arithmetic number, because the mean of its divisors is an integer number (536671245534).

Almost surely, 2^{1431123321422} is an apocalyptic number.

1431123321422 is a deficient number, since it is larger than the sum of its proper divisors (715561660714).

1431123321422 is an equidigital number, since it uses as much as digits as its factorization.

1431123321422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715561660713.

The product of its digits is 6912, while the sum is 29.

Adding to 1431123321422 its reverse (2241233211341), we get a palindrome (3672356532763).

The spelling of 1431123321422 in words is "one trillion, four hundred thirty-one billion, one hundred twenty-three million, three hundred twenty-one thousand, four hundred twenty-two".