142623311 has 2 divisors, whose sum is σ = 142623312. Its totient is φ = 142623310.

The previous prime is 142623293. The next prime is 142623323. The reversal of 142623311 is 113326241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142623311 - 2¹⁴ = 142606927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142625311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71311655 + 71311656.

It is an arithmetic number, because the mean of its divisors is an integer number (71311656).

Almost surely, 2^142623311 is an apocalyptic number.

142623311 is a deficient number, since it is larger than the sum of its proper divisors (1).

142623311 is an equidigital number, since it uses as much as digits as its factorization.

142623311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 142623311 is about 11942.5001988696. The cubic root of 142623311 is about 522.4725820644.

Adding to 142623311 its reverse (113326241), we get a palindrome (255949552).

The spelling of 142623311 in words is "one hundred forty-two million, six hundred twenty-three thousand, three hundred eleven".