1420312232431 has 2 divisors, whose sum is σ = 1420312232432. Its totient is φ = 1420312232430.

The previous prime is 1420312232407. The next prime is 1420312232461. The reversal of 1420312232431 is 1342322130241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420312232431 - 2⁷ = 1420312232303 is a prime.

It is a super-2 number, since 2×1420312232431² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420312232431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420312232461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710156116215 + 710156116216.

It is an arithmetic number, because the mean of its divisors is an integer number (710156116216).

Almost surely, 2^{1420312232431} is an apocalyptic number.

1420312232431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420312232431 is an equidigital number, since it uses as much as digits as its factorization.

1420312232431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1420312232431 its reverse (1342322130241), we get a palindrome (2762634362672).

The spelling of 1420312232431 in words is "one trillion, four hundred twenty billion, three hundred twelve million, two hundred thirty-two thousand, four hundred thirty-one".