20331212030819 has 2 divisors, whose sum is σ = 20331212030820. Its totient is φ = 20331212030818.

The previous prime is 20331212030809. The next prime is 20331212030839. The reversal of 20331212030819 is 91803021213302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331212030819 - 2⁴⁰ = 19231700403043 is a prime.

It is a super-2 number, since 2×20331212030819² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20331212030809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165606015409 + 10165606015410.

It is an arithmetic number, because the mean of its divisors is an integer number (10165606015410).

Almost surely, 2^{20331212030819} is an apocalyptic number.

20331212030819 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331212030819 is an equidigital number, since it uses as much as digits as its factorization.

20331212030819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 20331212030819 in words is "twenty trillion, three hundred thirty-one billion, two hundred twelve million, thirty thousand, eight hundred nineteen".