20133215819 has 2 divisors, whose sum is σ = 20133215820. Its totient is φ = 20133215818.

The previous prime is 20133215789. The next prime is 20133215827. The reversal of 20133215819 is 91851233102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20133215819 - 2¹² = 20133211723 is a prime.

It is a super-2 number, since 2×20133215819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20133215419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066607909 + 10066607910.

It is an arithmetic number, because the mean of its divisors is an integer number (10066607910).

Almost surely, 2^20133215819 is an apocalyptic number.

20133215819 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133215819 is an equidigital number, since it uses as much as digits as its factorization.

20133215819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 20133215819 in words is "twenty billion, one hundred thirty-three million, two hundred fifteen thousand, eight hundred nineteen".