1420001431 has 4 divisors (see below), whose sum is σ = 1424567664. Its totient is φ = 1415435200.

The previous prime is 1420001419. The next prime is 1420001467. The reversal of 1420001431 is 1341000241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341000241 = 7 ⋅191571463.

It is a cyclic number.

It is not a de Polignac number, because 1420001431 - 2⁵ = 1420001399 is a prime.

It is a super-2 number, since 2×1420001431² = 4032808128084095522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420002431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282650 + ... + 2283271.

It is an arithmetic number, because the mean of its divisors is an integer number (356141916).

Almost surely, 2^1420001431 is an apocalyptic number.

1420001431 is a deficient number, since it is larger than the sum of its proper divisors (4566233).

1420001431 is an equidigital number, since it uses as much as digits as its factorization.

1420001431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566232.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1420001431 is about 37682.9063502273. The cubic root of 1420001431 is about 1123.9912421800.

Adding to 1420001431 its reverse (1341000241), we get a palindrome (2761001672).

The spelling of 1420001431 in words is "one billion, four hundred twenty million, one thousand, four hundred thirty-one".