1420727324431 has 2 divisors, whose sum is σ = 1420727324432. Its totient is φ = 1420727324430.

The previous prime is 1420727324411. The next prime is 1420727324507. The reversal of 1420727324431 is 1344237270241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420727324431 is a prime.

It is a super-2 number, since 2×1420727324431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420727324411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710363662215 + 710363662216.

It is an arithmetic number, because the mean of its divisors is an integer number (710363662216).

Almost surely, 2^{1420727324431} is an apocalyptic number.

1420727324431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420727324431 is an equidigital number, since it uses as much as digits as its factorization.

1420727324431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 1420727324431 in words is "one trillion, four hundred twenty billion, seven hundred twenty-seven million, three hundred twenty-four thousand, four hundred thirty-one".