21023202131219 has 2 divisors, whose sum is σ = 21023202131220. Its totient is φ = 21023202131218.

The previous prime is 21023202131207. The next prime is 21023202131287. The reversal of 21023202131219 is 91213120232012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023202131219 - 2⁴⁰ = 19923690503443 is a prime.

It is a super-2 number, since 2×21023202131219² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21023202131191 and 21023202131200.

It is not a weakly prime, because it can be changed into another prime (21023202131119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511601065609 + 10511601065610.

It is an arithmetic number, because the mean of its divisors is an integer number (10511601065610).

Almost surely, 2^{21023202131219} is an apocalyptic number.

21023202131219 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023202131219 is an equidigital number, since it uses as much as digits as its factorization.

21023202131219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 21023202131219 in words is "twenty-one trillion, twenty-three billion, two hundred two million, one hundred thirty-one thousand, two hundred nineteen".