21234142483 has 2 divisors, whose sum is σ = 21234142484. Its totient is φ = 21234142482.

The previous prime is 21234142471. The next prime is 21234142507. The reversal of 21234142483 is 38424143212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21234142483 - 2²⁵ = 21200588051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21234142463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10617071241 + 10617071242.

It is an arithmetic number, because the mean of its divisors is an integer number (10617071242).

Almost surely, 2^21234142483 is an apocalyptic number.

21234142483 is a deficient number, since it is larger than the sum of its proper divisors (1).

21234142483 is an equidigital number, since it uses as much as digits as its factorization.

21234142483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 34.

Adding to 21234142483 its reverse (38424143212), we get a palindrome (59658285695).

The spelling of 21234142483 in words is "twenty-one billion, two hundred thirty-four million, one hundred forty-two thousand, four hundred eighty-three".