21230031202619 has 2 divisors, whose sum is σ = 21230031202620. Its totient is φ = 21230031202618.

The previous prime is 21230031202607. The next prime is 21230031202621. The reversal of 21230031202619 is 91620213003212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21230031202619 - 2¹⁶ = 21230031137083 is a prime.

It is a super-2 number, since 2×21230031202619² (a number of 27 digits) contains 22 as substring.

Together with 21230031202621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21230031202019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615015601309 + 10615015601310.

It is an arithmetic number, because the mean of its divisors is an integer number (10615015601310).

Almost surely, 2^{21230031202619} is an apocalyptic number.

21230031202619 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230031202619 is an equidigital number, since it uses as much as digits as its factorization.

21230031202619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 21230031202619 in words is "twenty-one trillion, two hundred thirty billion, thirty-one million, two hundred two thousand, six hundred nineteen".