21201402059 has 2 divisors, whose sum is σ = 21201402060. Its totient is φ = 21201402058.

The previous prime is 21201402043. The next prime is 21201402113. The reversal of 21201402059 is 95020410212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21201402059 - 2⁴ = 21201402043 is a prime.

It is not a weakly prime, because it can be changed into another prime (21201002059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600701029 + 10600701030.

It is an arithmetic number, because the mean of its divisors is an integer number (10600701030).

Almost surely, 2^21201402059 is an apocalyptic number.

21201402059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21201402059 is an equidigital number, since it uses as much as digits as its factorization.

21201402059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 21201402059 in words is "twenty-one billion, two hundred one million, four hundred two thousand, fifty-nine".