1420232403631 has 2 divisors, whose sum is σ = 1420232403632. Its totient is φ = 1420232403630.

The previous prime is 1420232403619. The next prime is 1420232403659. The reversal of 1420232403631 is 1363042320241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420232403631 is a prime.

It is a super-2 number, since 2×1420232403631² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420232403593 and 1420232403602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420232463631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710116201815 + 710116201816.

It is an arithmetic number, because the mean of its divisors is an integer number (710116201816).

Almost surely, 2^{1420232403631} is an apocalyptic number.

1420232403631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420232403631 is an equidigital number, since it uses as much as digits as its factorization.

1420232403631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1420232403631 its reverse (1363042320241), we get a palindrome (2783274723872).

The spelling of 1420232403631 in words is "one trillion, four hundred twenty billion, two hundred thirty-two million, four hundred three thousand, six hundred thirty-one".