1631223343 has 2 divisors, whose sum is σ = 1631223344. Its totient is φ = 1631223342.

The previous prime is 1631223337. The next prime is 1631223383. The reversal of 1631223343 is 3433221361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1631223343 - 2²⁵ = 1597668911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1631223383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815611671 + 815611672.

It is an arithmetic number, because the mean of its divisors is an integer number (815611672).

Almost surely, 2^1631223343 is an apocalyptic number.

1631223343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631223343 is an equidigital number, since it uses as much as digits as its factorization.

1631223343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 1631223343 is about 40388.4060467853. The cubic root of 1631223343 is about 1177.1662691388.

The spelling of 1631223343 in words is "one billion, six hundred thirty-one million, two hundred twenty-three thousand, three hundred forty-three".