1231422405331 has 8 divisors (see below), whose sum is σ = 1232738685360. Its totient is φ = 1230106687488.

The previous prime is 1231422405319. The next prime is 1231422405341. The reversal of 1231422405331 is 1335042241321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231422405331 - 2¹⁷ = 1231422274259 is a prime.

It is a super-2 number, since 2×1231422405331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231422405293 and 1231422405302.

It is not an unprimeable number, because it can be changed into a prime (1231422405341) 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, 4317900 + ... + 4594246.

It is an arithmetic number, because the mean of its divisors is an integer number (154092335670).

Almost surely, 2^{1231422405331} is an apocalyptic number.

1231422405331 is a deficient number, since it is larger than the sum of its proper divisors (1316280029).

1231422405331 is a wasteful number, since it uses less digits than its factorization.

1231422405331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281093.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1231422405331 its reverse (1335042241321), we get a palindrome (2566464646652).

The spelling of 1231422405331 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-two million, four hundred five thousand, three hundred thirty-one".