142023042409 has 2 divisors, whose sum is σ = 142023042410. Its totient is φ = 142023042408.

The previous prime is 142023042407. The next prime is 142023042463. The reversal of 142023042409 is 904240320241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141944330025 + 78712384 = 376755^2 + 8872^2 .

It is a cyclic number.

It is not a de Polignac number, because 142023042409 - 2¹ = 142023042407 is a prime.

It is a super-2 number, since 2×142023042409² (a number of 23 digits) contains 22 as substring.

Together with 142023042407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142023042407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71011521204 + 71011521205.

It is an arithmetic number, because the mean of its divisors is an integer number (71011521205).

Almost surely, 2^142023042409 is an apocalyptic number.

It is an amenable number.

142023042409 is a deficient number, since it is larger than the sum of its proper divisors (1).

142023042409 is an equidigital number, since it uses as much as digits as its factorization.

142023042409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 142023042409 in words is "one hundred forty-two billion, twenty-three million, forty-two thousand, four hundred nine".